VALATKIENĖ, Stasė. The Conception and Historical Sources of Alternative Modern Schools. Acta Paedagogica Vilnensia, [S. l.], v. 13, n. 13, p. 139–146, 2004. DOI: 10.15388/ActPaed.2004.13.9643. Disponível em: https://test.zurnalai.vu.lt/acta-paedagogica-vilnensia/article/view/9643. Acesso em: 25 oct. 2025.