HEUSINGER, Siegfried. Thesen zur sprachentwicklung im schuljugendalter. Linguistica, Ljubljana, SI, v. 18, n. 1, p. 167–190, 1978. DOI: 10.4312/linguistica.18.1.167-190. Disponível em: https://journals.uni-lj.si/linguistica/article/view/4931.. Acesso em: 7 sep. 2024.