DOBROVOLSKIS, Bronius. Sukaktys. Acta Paedagogica Vilnensia, [S. l.], v. 22, p. 193–197, 2009. DOI: 10.15388/ActPaed.2009.22.3057. Disponível em: https://www.zurnalai.vu.lt/acta-paedagogica-vilnensia/article/view/3057. Acesso em: 27 apr. 2025.