Tools and Methods for Validation and Verification as requested by ISO26262. - Markus Gebhardt; Axel Kaske (Softwaretechnik-Trends, 2011)

Formative Diagnostik durch die Onlineplattform LEVUMI. - Andreas Mühling; Markus Gebhardt; Kirsten Diehl (Inform. Spektrum, 2017)

Levumi: A Web-Based Curriculum-Based Measurement to Monitor Learning Progress in Inclusive Classrooms. - Jana Jungjohann; Jeffrey M. DeVries; Markus Gebhardt; Andreas Mühling (ICCHP (1), 2018)

Progress Monitoring in Primary Education using Levumi: A Case Study. - Andreas Mühling; Jana Jungjohann; Markus Gebhardt (CSEDU (1), 2019)

What Applying Growth Mixture Modeling Can Tell Us About Predictors of Number Line Estimation. - Jeffrey M. DeVries; Jörg-Tobias Kuhn; Markus Gebhardt (J. Numer. Cogn., 2020)

Duration versus accuracy - what matters for computerised adaptive testing in schools? - Nikola Ebenbeck; Morten Bastian; Andreas Mühling; Markus Gebhardt (J. Comput. Assist. Learn., 2024)