KOVALEV, Mikhail M.; KOROLEVA, Anna A. Submodularity in economics. Journal of the Belarusian State University. Economics, [S. l.], n. 2, p. 4–12, 2024. Disponível em: https://journals.bsu.by/index.php/economy/article/view/6739. Acesso em: 18 jul. 2026.