GEFENAS, E. The Analysis of Value Ethics. Problemos, [S. l.], v. 49, p. 142–143, 1996. DOI: 10.15388/Problemos.1996.49.7001. Disponível em: https://test.zurnalai.vu.lt/problemos/article/view/7001. Acesso em: 24 oct. 2025.