TARGOŃSKA, J. Stand der Forschungen zum L3-Erwerb. Acta Neophilologica, [S. l.], n. III, p. 97–107, 2001. Disponível em: https://czasopisma.uwm.edu.pl/index.php/an/article/view/1569. Acesso em: 9 kwi. 2025.