Kälberer, Nina, Cornelia Böhmer, Katrin Tschirpke, Brigitte Petendra, and Eva Maria Beck-Meuth. 2014. “Preparatory Mathematics Course for Non-Traditional Engineering Students”. International Journal of Engineering Pedagogy (iJEP) 4 (4):pp. 51-58. https://doi.org/10.3991/ijep.v4i4.3999.