MALTSEVA, Svetlana V. Ecclesiastic Architecture of the First Bulgarian Kingdom: Researchers and Research. Actual Problems of Theory and History of Art, [S. l.], v. 9, p. 350–365, 2019. DOI: 10.18688/aa199-2-31. Disponível em: https://publ.actual-art.org/aptha/article/view/10726. Acesso em: 13 mar. 2025.