NIKOLCHEV, Dilyan. Beginning of the State Security Operations against Exarch Stefan during the 40s of the 20th Century. Forum Theologicum Sardicense, [S. l.], n. 2, p. 109–120, 2025. Disponível em: https://periodicals.uni-sofia.bg/index.php/forum-theologicum-sardicense/article/view/572. Acesso em: 13 aug. 2025.