BARZDAITIS, Juozas. Ludwig Feuerbach - An Outstanding Materialist Philosopher. Problemos, [S. l.], v. 10, p. 90–99, 1972. DOI: 10.15388/Problemos.1972.10.5493. Disponível em: https://test.zurnalai.vu.lt/problemos/article/view/5493. Acesso em: 28 oct. 2025.