UTKINA, N. Positivism in Russia (The Second Half of the XIXth c.) . Problemos, [S. l.], v. 8, p. 64–68, 1971. DOI: 10.15388/Problemos.1971.8.5835. Disponível em: https://www.journals.vu.lt/problemos/article/view/5835.. Acesso em: 29 apr. 2024.