An Irregular School - Introduction of "Freie Schule in Berlin" Alternative School. Training and Practice : Journal of Educational Sciences, [S. l.], v. 10, n. 1-2, p. 40–53, 2012. Disponível em: https://journal.uni-mate.hu/index.php/trainingandpractice/article/view/5171. Acesso em: 30 jan. 2026.