STOYANOV, J. M. Kolmogorov, stochastics in Bulgaria, and probabilistic problems with unexpected solutions. Mathematics and Education in Mathematics, [S. l.], v. 53, p. 180–197, 2024. DOI: 10.55630/mem.2024.53.180-197. Disponível em: https://smb.math.bas.bg/mem/index.php/memjournal/article/view/153. Acesso em: 4 oct. 2026.