RANDOLL, Dirk; PETERS, Jürgen. Empirical Research on Waldorf Education. Educar em Revista, [S. l.], v. 31, n. 56, p. p. 33–47, 2015. Disponível em: https://revistas.ufpr.br/educar/article/view/41416. Acesso em: 4 jan. 2026.