Kiryakova В.; Kenderov П.; Tersian С. 90 years of the birth of prof. Docho Dochev and to his memory (1932–2021). Mathematics and Education in Mathematics, [S. l.], v. 51, p. 24–31, 2022. Disponível em: https://smb.math.bas.bg/mem/index.php/memjournal/article/view/49. Acesso em: 5 oct. 2026.