The mathematical papers of Blagovest Dolaptchiev. An attempt on an analytical bibliography. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 88, p. 179–219, 1996. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/381. Acesso em: 15 dec. 2025.