Trips, C., Percillier, M., Elter, W. J., Kaltenbach, L., & Seidel, L. (2020). Foreword to the inaugural volume of the Student Edition of Mannheim papers in multilingualism, acquisition and change (MAPMAC). Mannheim Papers in Multilingualism, Acquisition and Change, 1, i-iii. https://doi.org/10.25521/mapmac.2020.135