Lutz, Stephanie, Nikola Ebenbeck, and Markus Gebhardt. 2023. “Mathematical Skills of Students With Special Educational Needs in the Area of Learning (SEN-L) in Pre-Vocational Programs in Germany”. International Journal for Research in Vocational Education and Training 10 (1):1-23. https://doi.org/10.13152/IJRVET.10.1.1.