BALČIUS, Jonas. Christianity in Lithuania. Problemos, [S. l.], v. 12, p. 134–137, 1973. DOI: 10.15388/Problemos.1973.12.5533. Disponível em: https://test.zurnalai.vu.lt/problemos/article/view/5533. Acesso em: 25 oct. 2025.