GOSPODARIK, Catherine G.; KOVALEV, Mikhail M. Mathematical models of rating analyses. Journal of the Belarusian State University. Economics, [S. l.], n. 2, p. 4–19, 2023. Disponível em: https://journals.bsu.by/index.php/economy/article/view/5796. Acesso em: 18 jul. 2026.