KOTOV, Vladimir M.; BOGDANOVA, Natallia S. Bunch technique for semionline with two groups of items. Journal of the Belarusian State University. Mathematics and Informatics, [S. l.], n. 3, p. 134–138, 2019. DOI: 10.33581/2520-6508-2019-3-134-138. Disponível em: https://journals.bsu.by/index.php/mathematics/article/view/1048. Acesso em: 17 jul. 2026.