Construction of echelons in multi-agent functionals for predicting the incidence of COVID-19 in Ukraine. Mathematical Machines and Systems, [S. l.], n. 2, p. 45–51, 2021. DOI: 10.34121/1028-9763-2021-2-45–51. Disponível em: https://www.j-mms.de/index.php/mms/article/view/2021-2-a5. Acesso em: 23 oct. 2026.