DAUGIRDAS, Angelas. Introduction to Philosophy. Problemos, [S. l.], v. 19, p. 79–90, 1977. DOI: 10.15388/Problemos.1977.19.5671. Disponível em: https://www.journals.vu.lt/problemos/article/view/5671. Acesso em: 8 may. 2025.