VOLODKA, Henrikas. Ecological Situation of Schools of Northern Lithuania. Acta Paedagogica Vilnensia, [S. l.], v. 8, p. 37–44, 2001. DOI: 10.15388/ActPaed.2001.08.9509. Disponível em: https://www.journals.vu.lt/acta-paedagogica-vilnensia/article/view/9509.. Acesso em: 28 apr. 2024.