FETZER, M.-C. Klassenaustausch: Ein Modell, viele Formen. Babylonia Journal of Language Education, [S. l.], v. 1, p. 94–97, 2026. DOI: 10.55393/babylonia.v1i.966. Disponível em: https://babylonia.online/index.php/babylonia/article/view/966. Acesso em: 26 apr. 2026.