Apel, Anne. “Interlanguage As a Projection of Abstract Lexical Structure from L1 and TL: Testing the Composite Matrix Language Model of Second-Language Acquisition”. Mannheim papers in multilingualism, acquisition and change 3 (September 9, 2021): 1–72. Accessed March 29, 2024. https://majournals.bib.uni-mannheim.de/index.php/mapmac/article/view/159.