WEISS, J.; ZUTAVERN, M. Pisa – ergänzende Perspektiven. Swiss Journal of Educational Research, [S. l.], v. 25, n. 1, p. 05–10, 2003. DOI: 10.24452/sjer.25.1.4644. Disponível em: https://sjer.ch/article/view/4644. Acesso em: 22 nov. 2024.