SMIT, Robbert; HUMPERT, Winfried. Parents’ perspective on multi-age teaching within a school development initiative (project «schools in alpine regions», St. Gall part). Swiss Journal of Educational Research, Bern, v. 34, n. 2, p. 323–344, 2018. DOI: 10.24452/sjer.34.2.4886. Disponível em: https://sjer.ch/article/view/4886. Acesso em: 3 apr. 2025.