Simon Schäfer

Dr.-Ing. · Postdoctoral Researcher
University of the Bundeswehr Munich

I teach roads to keep track of their own traffic. My research fuses in-road sensing, roadside lidar and vehicle-to-infrastructure messages into one live picture of every road user, from a 1:18-scale testbed up to full-scale roads.

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Get in touch Publications

Portrait of Simon Schäfer
rviz2 · fixed frame: map · map: lanelet2 tracks: 0
  • fused track
  • roadside lidar
  • in-road sensing
  • V2X messages

My dissertation in one picture: three imperfect sources, one object list. This is a small simulation running in your browser, not recorded data.

About

I am a postdoctoral researcher at the Professorship for Adaptive Behavior of Autonomous Vehicles at the University of the Bundeswehr Munich. There I lead the team behind the Cyber-Physical Mobility Lab (CPM Lab), an open-source 1:18-scale testbed for connected and automated vehicles.

In 2026 I received my Dr.-Ing. from RWTH Aachen University for the dissertation Infrastructure-Based Localization Across Scales. I wrote it in the Cyber-Physical Mobility group at the Chair for Embedded Software, as part of the DFG Collaborative Research Centre SFB/TRR 339 Digital Twin of the Road System. In 2024 the work took me to the NODE Lab at the University of Alberta as a visiting researcher.

Before that I studied Computational Engineering Science in Aachen, which left me comfortable somewhere between mechanical engineering, mathematics and computer science. Day to day I write C++ for ROS 2 and draw my maps in Lanelet2.

I love electronics as much as software. At home I keep a workbench with a soldering station and a drill press, and there is usually a coffee within reach.

Path so far

  1. 2026 – now

    Postdoctoral Researcher

    University of the Bundeswehr Munich · Professorship for Adaptive Behavior of Autonomous Vehicles

    Infrastructure-based localization in the second funding phase of SFB/TRR 339, and team lead of the CPM Lab.

  2. 2022 – 2026

    Research Associate and doctoral candidate (Dr.-Ing.)

    RWTH Aachen University · Chair for Embedded Software (Informatik 11) · Cyber-Physical Mobility group

    Dissertation defended on 19 June 2026, supervised by Stefan Kowalewski, Bassam Alrifaee and Ehsan Hashemi. Team lead of the CPM Lab since 2024.

  3. 2024

    Visiting Researcher

    NODE Lab · University of Alberta, Edmonton, Canada

    Research stay in the group of Ehsan Hashemi, which led to our joint work on roadside lidar sensor nodes.

  4. 2019 – 2021

    M.Sc. Computational Engineering Science

    RWTH Aachen University

    Focus on automated driving and robotics, graduated with honors. Alongside, student assistant at the Institute for Automotive Engineering (ika), working on environment perception and developing two lab courses.

  5. 2018

    Internship

    fka GmbH, Aachen

    A stand-alone Kalman filter library for object-level data fusion, and the migration of parts of an automated driving stack from ADTF to ROS.

  6. 2015 – 2019

    B.Sc. Computational Engineering Science

    RWTH Aachen University

    Mechanical engineering, mathematics and computer science with a specialization in automation and simulation. Student assistant at MathCCES on the solar tower simulation Sunflower (C++).

References

  • Univ.-Prof. Dr.-Ing. Bassam Alrifaee

    Professorship for Adaptive Behavior of Autonomous Vehicles, University of the Bundeswehr Munich

    doctoral supervisor · current group lead

  • Prof. Dr.-Ing. Stefan Kowalewski

    Chair for Embedded Software (Informatik 11), RWTH Aachen University

    doctoral supervisor

  • Ehsan Hashemi, Ph.D.

    Associate Professor, Department of Mechanical Engineering, University of Alberta · NODE Lab

    doctoral supervisor · host of my research stay

Research

An automated vehicle sees the world from wherever it happens to be. Infrastructure sees it from where it matters: the intersection, the on-ramp, the construction site. I build localization systems that live in and beside the road and report every road user in a fixed area in real time, on embedded hardware: state, size, class and how sure we are that it exists.

/in_road_sensingpressure-sensitive layer in the pavement
/roadside_lidarone lidar and an edge computer per pole
/v2x_receivervehicles report their own state
/ufil/fusionpredict · associate · update · manage tracks
/digital_twinevery road user, in one map frame
The localization pipeline from my dissertation, drawn the way rqt_graph would: three sources deliver object lists with uncertainty, one fusion node turns them into a single global object list.

What I work on

  • The road as a sensor

    A pressure-sensitive surface layer in the pavement measures load. I detect wheel contact patches in it, track the wheels and assemble them into vehicles. In our testbed that located vehicles to within a few centimetres.

    IV 2023 · Dissertation

  • Roadside lidar on a CPU budget

    A sensor node that bolts onto existing urban infrastructure. A GPU-free observer estimates state, dimensions, class and existence of every object, and finishes within 100 ms for 99.88 % of messages.

    Adv. Intell. Syst. 2026

  • One framework for all of it

    Ufil gives infrastructure-based localization a standard object model and reusable tracking components. The same pipeline fuses V2X messages, lidar nodes and the in-road layer, and runs unchanged in simulation and on the testbed.

    Ufil preprint · Dissertation

  • From 1:18 to 1:1

    Small-scale testbeds sit between simulation and expensive full-scale tests. I study which results transfer across scales, and which do not, and I lead the team that runs our own testbed.

    ICVES 2024 · RAM 2025 · at 2026

Projects

  • DFG Collaborative Research Centre · since 2022

    SFB/TRR 339 · Digital Twin of the Road System

    I work in subproject B03, Generating highly accurate position data using cooperative sensor data fusion, together with partners at RWTH Aachen University, TU Dresden, the Federal Highway Research Institute (BASt) and the University of Alberta.

  • Testbed · team lead since 2024

    Cyber-Physical Mobility Lab

    An open-source testbed for research and teaching: up to 20 model-scale cars at 1:18 on a 4 × 4.5 m Lanelet2 map, driven by ROS 2. Motion planners run unchanged in simulation and in the lab.

Publications

Everything I have published so far, newest first. Titles link to the publisher; where a free version exists it is linked next to it.

also on Google Scholar · ORCID

2026

  1. Dissertation

    Infrastructure-Based Localization Across Scales

    S. Schäfer

    Dissertation, RWTH Aachen University, 2026. Aachener Informatik-Berichte 2026,2. Supervisors: S. Kowalewski, B. Alrifaee, E. Hashemi.

    DOI RWTH Publications Code
    BibTeX
    @phdthesis{schaefer2026dissertation,
      author = {Sch{\"a}fer, Simon},
      title  = {Infrastructure-Based Localization Across Scales},
      school = {RWTH Aachen University},
      year   = {2026},
      series = {Aachener Informatik-Berichte},
      number = {2026-02},
      doi    = {10.18154/RWTH-2026-07086}
    }
  2. Journal

    Lidar-Based Object Tracking of Traffic Participants with Sensor Nodes in Existing Urban Infrastructure

    S. Schäfer, B. Alrifaee, and E. Hashemi

    Advanced Intelligent Systems, vol. 8, no. 8, e202501102, 2026. Open access.

    DOI arXiv Code
    BibTeX
    @article{schaefer2026lidar,
      author  = {Sch{\"a}fer, Simon and Alrifaee, Bassam and Hashemi, Ehsan},
      title   = {Lidar-Based Object Tracking of Traffic Participants with Sensor Nodes in Existing Urban Infrastructure},
      journal = {Advanced Intelligent Systems},
      volume  = {8},
      number  = {8},
      pages   = {e202501102},
      year    = {2026},
      doi     = {10.1002/aisy.202501102}
    }
  3. Journal

    Zero-Shot MARL Benchmark in the Cyber-Physical Mobility Lab

    J. Beerwerth, J. Xu, S. Schäfer, F. Belderink, and B. Alrifaee

    at – Automatisierungstechnik, vol. 74, no. 5, pp. 376–385, 2026.

    DOI arXiv
    BibTeX
    @article{beerwerth2026zeroshot,
      author  = {Beerwerth, Julius and Xu, Jianye and Sch{\"a}fer, Simon and Belderink, Fynn and Alrifaee, Bassam},
      title   = {Zero-Shot {MARL} Benchmark in the {Cyber-Physical Mobility Lab}},
      journal = {at - Automatisierungstechnik},
      volume  = {74},
      number  = {5},
      pages   = {376--385},
      year    = {2026},
      doi     = {10.1515/auto-2025-0057}
    }
  4. Journal

    Identification and Evaluation of Uncertainty Sources of Materials and Sensors for the Digital Twin Road Initiative

    A. Chihadeh, M. Böttcher, D. Crampen, E. Kamratowsky, M. Hagmanns, J. Zhao, S. Ullmann, V. Yordanov, G. Canon Falla, S. Schäfer, B. Alrifaee, M. Liebscher, M. Butler, S. Leischner, A. Fazekas, W. Graf, I. Herle, V. Mechtcherine, A. Zeißler, L. Eckstein, M. Oeser, J. Blankenbach, and M. Kaliske

    Structure and Infrastructure Engineering, pp. 1–18, 2026 (published online). Open access.

    DOI
    BibTeX
    @article{chihadeh2026uncertainty,
      author  = {Chihadeh, Ahmad and B{\"o}ttcher, Maria and Crampen, David and Kamratowsky, Erik and Hagmanns, Moritz and Zhao, Jitong and Ullmann, Sebastian and Yordanov, Ventseslav and Canon Falla, Gustavo and Sch{\"a}fer, Simon and Alrifaee, Bassam and Liebscher, Marco and Butler, Marko and Leischner, Sabine and Fazekas, Adrian and Graf, Wolfgang and Herle, Ivo and Mechtcherine, Viktor and Zei{\ss}ler, Alexander and Eckstein, Lutz and Oeser, Markus and Blankenbach, J{\"o}rg and Kaliske, Michael},
      title   = {Identification and Evaluation of Uncertainty Sources of Materials and Sensors for the Digital Twin Road Initiative},
      journal = {Structure and Infrastructure Engineering},
      pages   = {1--18},
      year    = {2026},
      doi     = {10.1080/15732479.2026.2645822}
    }
  5. Preprint

    Ufil: A Unified Framework for Infrastructure-based Localization

    S. Schäfer, L. Hegerath, M. Molz, M. Marcon, and B. Alrifaee

    arXiv:2604.21471, 2026.

    arXiv Code Docs
    BibTeX
    @misc{schaefer2026ufil,
      author        = {Sch{\"a}fer, Simon and Hegerath, Lucas and Molz, Marius and Marcon, Massimo and Alrifaee, Bassam},
      title         = {Ufil: A Unified Framework for Infrastructure-based Localization},
      year          = {2026},
      eprint        = {2604.21471},
      archivePrefix = {arXiv},
      primaryClass  = {cs.RO}
    }
  6. Dataset

    Data corresponding to the paper “A Feasibility Study of a Hybrid Digital Shadow System for Pavement-Load Monitoring”

    D. Crampen, M. Hein, S. Schäfer, A. Anantheswar, M. May, M. P. M. Hagmanns, J. Kehls, V. Yordanov, F. Hartung, M. Kaliske, I. Wollny, A. Fazekas, M. Oeser, B. Alrifaee, T. Brepols, L. Scheunemann, L. Eckstein, and J. Blankenbach

    OPARA research data repository, 2026.

    DOI
    BibTeX
    @misc{crampen2026data,
      author    = {Crampen, David and Hein, Marcel and Sch{\"a}fer, Simon and Anantheswar, Atul and May, Marcel and Hagmanns, Moritz P. M. and Kehls, Jannick and Yordanov, Ventseslav and Hartung, Felix and Kaliske, Michael and Wollny, Ines and Fazekas, Adrian and Oeser, Markus and Alrifaee, Bassam and Brepols, Tim and Scheunemann, Lisa and Eckstein, Lutz and Blankenbach, J{\"o}rg},
      title     = {Data corresponding to paper: ``A Feasibility Study of a Hybrid Digital Shadow System for Pavement-Load Monitoring''},
      year      = {2026},
      publisher = {OPARA},
      doi       = {10.25532/opara-1606}
    }

2025

  1. Conference

    Integrated Wheel Sensor Communication Using ESP32 – A Contribution Towards a Digital Twin of the Road System

    V. Yordanov, S. Schäfer, A. Mann, S. Kowalewski, B. Alrifaee, and L. Eckstein

    IEEE 28th International Conference on Intelligent Transportation Systems (ITSC), Gold Coast, Australia, 2025, pp. 88–93.

    DOI arXiv
    BibTeX
    @inproceedings{yordanov2025wheel,
      author    = {Yordanov, Ventseslav and Sch{\"a}fer, Simon and Mann, Alexander and Kowalewski, Stefan and Alrifaee, Bassam and Eckstein, Lutz},
      title     = {Integrated Wheel Sensor Communication Using {ESP32} -- A Contribution Towards a Digital Twin of the Road System},
      booktitle = {2025 IEEE 28th International Conference on Intelligent Transportation Systems (ITSC)},
      pages     = {88--93},
      year      = {2025},
      doi       = {10.1109/ITSC60802.2025.11423051}
    }
  2. Journal

    A Survey on Small-Scale Testbeds for Connected and Automated Vehicles and Robot Swarms: A Guide for Creating a New Testbed

    A. Mokhtarian, J. Xu, P. Scheffe, M. Kloock, S. Schäfer, H. Bang, V.-A. Le, S. Ulhas, J. Betz, S. Wilson, S. Berman, L. Paull, A. Prorok, and B. Alrifaee

    IEEE Robotics & Automation Magazine, vol. 32, no. 3, pp. 146–163, 2025.

    DOI arXiv Project page
    BibTeX
    @article{mokhtarian2025survey,
      author  = {Mokhtarian, Armin and Xu, Jianye and Scheffe, Patrick and Kloock, Maximilian and Sch{\"a}fer, Simon and Bang, Heeseung and Le, Viet-Anh and Ulhas, Sangeet and Betz, Johannes and Wilson, Sean and Berman, Spring and Paull, Liam and Prorok, Amanda and Alrifaee, Bassam},
      title   = {A Survey on Small-Scale Testbeds for Connected and Automated Vehicles and Robot Swarms: A Guide for Creating a New Testbed},
      journal = {IEEE Robotics \& Automation Magazine},
      volume  = {32},
      number  = {3},
      pages   = {146--163},
      year    = {2025},
      doi     = {10.1109/MRA.2024.3505772}
    }
  3. Preprint

    Simulation to Reality: Testbeds and Architectures for Connected and Automated Vehicles

    D. Klüner, S. Schäfer, L. Hegerath, J. Xu, J. Kahle, H. Ibrahim, A. Kampmann, and B. Alrifaee

    arXiv:2505.03472, 2025.

    arXiv
    BibTeX
    @misc{kluener2025simulation,
      author        = {Kl{\"u}ner, David and Sch{\"a}fer, Simon and Hegerath, Lucas and Xu, Jianye and Kahle, Julius and Ibrahim, Hazem and Kampmann, Alexandru and Alrifaee, Bassam},
      title         = {Simulation to Reality: Testbeds and Architectures for Connected and Automated Vehicles},
      year          = {2025},
      eprint        = {2505.03472},
      archivePrefix = {arXiv},
      primaryClass  = {cs.MA}
    }

2024

  1. Conference

    From Small-Scale to Full-Scale: Assessing the Potential for Transferability of Experimental Results in Small-Scale CAV Testbeds

    S. Schäfer and B. Alrifaee

    IEEE International Conference on Vehicular Electronics and Safety (ICVES), Ahmedabad, India, 2024, pp. 1–6.

    DOI
    BibTeX
    @inproceedings{schaefer2024transferability,
      author    = {Sch{\"a}fer, Simon and Alrifaee, Bassam},
      title     = {From Small-Scale to Full-Scale: Assessing the Potential for Transferability of Experimental Results in Small-Scale {CAV} Testbeds},
      booktitle = {2024 IEEE International Conference on Vehicular Electronics and Safety (ICVES)},
      pages     = {1--6},
      year      = {2024},
      doi       = {10.1109/ICVES61986.2024.10927876}
    }
  2. Conference

    Educational Applications of the Cyber-Physical Mobility Lab: A Summary

    S. Schäfer, J. Xu, D. Klüner, A. Mokhtarian, P. Scheffe, and B. Alrifaee

    European Control Conference (ECC), Stockholm, Sweden, 2024, pp. 2666–2671.

    DOI
    BibTeX
    @inproceedings{schaefer2024educational,
      author    = {Sch{\"a}fer, Simon and Xu, Jianye and Kl{\"u}ner, David and Mokhtarian, Armin and Scheffe, Patrick and Alrifaee, Bassam},
      title     = {Educational Applications of the {Cyber-Physical Mobility Lab}: A Summary},
      booktitle = {2024 European Control Conference (ECC)},
      pages     = {2666--2671},
      year      = {2024},
      doi       = {10.23919/ECC64448.2024.10591176}
    }

2023

  1. Conference

    Investigating a Pressure Sensitive Surface Layer for Vehicle Localization

    S. Schäfer, H. Steidl, S. Kowalewski, and B. Alrifaee

    IEEE Intelligent Vehicles Symposium (IV), Anchorage, AK, USA, 2023, pp. 1–6.

    DOI Code Video
    BibTeX
    @inproceedings{schaefer2023pressure,
      author    = {Sch{\"a}fer, Simon and Steidl, Hendrik and Kowalewski, Stefan and Alrifaee, Bassam},
      title     = {Investigating a Pressure Sensitive Surface Layer for Vehicle Localization},
      booktitle = {2023 IEEE Intelligent Vehicles Symposium (IV)},
      pages     = {1--6},
      year      = {2023},
      doi       = {10.1109/IV55152.2023.10186582}
    }

2022

  1. Conference

    CPM Olympics: Development of Scenarios for Benchmarking in Networked and Autonomous Driving

    A. Mokhtarian, S. Schäfer, and B. Alrifaee

    IEEE Intelligent Vehicles Symposium (IV), Aachen, Germany, 2022, pp. 9–15.

    DOI Preprint Code
    BibTeX
    @inproceedings{mokhtarian2022olympics,
      author    = {Mokhtarian, Armin and Sch{\"a}fer, Simon and Alrifaee, Bassam},
      title     = {{CPM Olympics}: Development of Scenarios for Benchmarking in Networked and Autonomous Driving},
      booktitle = {2022 IEEE Intelligent Vehicles Symposium (IV)},
      pages     = {9--15},
      year      = {2022},
      doi       = {10.1109/IV51971.2022.9827299}
    }

Open-source software

The research of my PhD is open source. So are the tools I built around it, and a few things I made simply because I wanted them to exist.

Research software

  • Algorithms-for-Perception

    Reference implementations of the perception algorithms from my papers: clustering, Kalman tracking, dimension estimation, classification and existence probability, each with a runnable demo.

    • Python
    • MATLAB
    • MIT
  • ssl-vehicle-tracking

    ROS 2 packages that detect and track vehicles on a pressure-sensitive road surface: wheel detection, wheel tracking, vehicle assembly and an RViz visualization.

    • C++
    • ROS 2
    • MIT
  • CPM Lab

    The software and documentation of our 1:18-scale testbed, now on ROS 2. I lead the team that develops and operates it.

    • C++
    • ROS 2
    • Lanelet2
  • Dataset-Converter

    A Qt application that turns recorded traffic datasets into scenarios for the CPM Lab and edits Lanelet2 maps. Built for the CPM Olympics benchmark.

    • C++
    • Qt
    • MIT
  • CPM-Scenario

    The C++ library for reading and writing CPM scenario files, a format based on CommonRoad. Used by the Dataset-Converter.

    • C++
    • MIT

Contributions upstream

  • eProsima Fast DDS

    Removed an unused macro that caused naming clashes in the default DDS middleware of ROS 2. A small fix, merged upstream.

    • C++
    • merged 2021
  • mROS 2 for ESP32

    Ethernet support for the embedded ROS 2 client on ESP32 boards, so a microcontroller can join the ROS 2 network over a cable.

    • C
    • ESP32
    • open
  • Rosless-Lanelet2

    Keeping our ROS-free build of the Lanelet2 map library in step with upstream.

    • C++
    • Lanelet2
    • BSD-3-Clause

Side projects

  • CMakeTemplate

    A modern CMake project template that covers the common cases, with a guide on how to structure a C++ project around it.

    • CMake
    • C++
  • reDump

    Dumps the framebuffer of a reMarkable 2 tablet at 12 to 15 frames per second instead of 2 to 3, which makes live screen sharing usable.

    • C++
    • embedded Linux
  • Papercards

    A Qt application for writing flashcards that are meant to be printed, because some things are learned better on paper.

    • C++
    • Qt

Teaching

I have been teaching since 2016: first as a tutor for C++, then building lab courses on automated driving, and during my doctorate supervising the courses around our testbed.

  • Assistant lecturerRWTH Aachen · M.Sc.

    Control and Perception in Networked and Autonomous Vehicles

    The master's course of the Cyber-Physical Mobility group, which I supervised over several winter terms. Students learn distributed model predictive control for multi-vehicle systems in the lecture, then spend eight afternoons in the CPM Lab testing their own controllers on vehicle platoons. Six credit points, about 30 students per term.

  • Course supervisorRWTH Aachen · B.Sc.

    Practical Course: Cyber-Physical Mobility Lab

    The bachelor's lab course built on the CPM Academy. Working remotely, students implement a package delivery service for the lab's model-scale vehicles and solve a series of challenges, first in simulation and then in real experiments.

  • Teaching conceptCPM group · 2024

    Educational Applications of the Cyber-Physical Mobility Lab

    We use the lab for an undergraduate course, a graduate course and an international competition. In this paper I summarized the concept behind that portfolio and what we learned from four years of evaluations with more than 370 students.

  • Student assistantRWTH Aachen · 2021 – 2022

    Functional Safety and System Reliability

    Where I started at the Chair for Embedded Software: answering student questions and preparing course material for the master's lecture on dependability and the safety of software-controlled systems.

  • Developer and tutorika, RWTH Aachen · 2019 – 2021

    Self-Driving Lab I – Software Framework

    A lab course I created together with my supervisor at the time, Michael Hoß. Students learn ROS by making an automated race cart drive in simulation.

  • Developer and tutorika, RWTH Aachen · 2019 – 2021

    Self-Driving Lab II – Algorithms

    The follow-up course: algorithms for automated driving, developed on real data and tested with a simulation that closes the loop.

  • TutorSTCE, RWTH Aachen · 2016 – 2017

    Introduction to Programming (C++)

    My first teaching job: a tutorial group of about 30 first-year students learning the basics of programming in C++.

Service & volunteering

Conferences and societies run on volunteers. I do my share in the IEEE Intelligent Transportation Systems Society (ITSS), and before that I did it in student self-governance at RWTH Aachen.

Second place, Three Minute Thesis (3MT) competition

IEEE ITSC 2026, Naples. A whole dissertation in three minutes and one slide.

IEEE ITSS and its conferences

  1. 2025 – now

    Secretary, IEEE ITSS Germany Chapter

    The chapter connects the intelligent transportation community in Germany through a lecture series, a newsletter and awards for young researchers.

  2. 2027

    Registration Co-Chair, IEEE ITSC 2027

    30th IEEE International Conference on Intelligent Transportation Systems · Boston, USA · 21 – 24 September 2027

  3. 2027

    Registration Chair, IEEE IV 2027

    38th IEEE Intelligent Vehicles Symposium · Perth, Australia · 15 – 18 June 2027

  4. 2026

    Student Activities Chair, IEEE ITSC 2026

    29th IEEE International Conference on Intelligent Transportation Systems · Naples, Italy · 15 – 18 September 2026

  5. 2026

    Organizer, 1st IPerSense Workshop

    Infrastructure Perception and Sensing · half-day workshop at IEEE ITSC 2026

    The first edition of a workshop series on infrastructure-based perception, which I organized together with Bassam Alrifaee, Ignacio Alvarez and Ehsan Hashemi. I also gave the talk Filling the Gap: From Sim to Small to Full Scale Testing for Roadside Sensing Systems.

  6. 2025

    Volunteer, IEEE ITSC 2025

    Gold Coast, Australia

  7. 2024

    Local organizer, IEEE ITSC 2024

    Edmonton, Canada · 24 – 27 September 2024

    Part of the local team during my research stay at the University of Alberta.

Student self-governance at RWTH Aachen

  1. 2019 – 2021

    Faculty examination board

    Elected student representative. The board decides on amendments to the examination regulations and on the direction of teaching in the faculty.

  2. 2017 – 2022

    Examination boards for Computational Engineering Science and Simulation Sciences

    Elected student representative. The boards discuss changes to the examination regulations of both study programs and decide on applications from students.

  3. 2016 – 2022

    Student Council of Mechanical Engineering

    Advising fellow students and organizing events for six years.

Get in touch

A collaboration, a student project, a review request, a question about Ufil or the CPM Lab: write to me. E-mail is the fastest way.

simon.schaefer [at] unibw.de

University of the Bundeswehr Munich · Neubiberg, Germany