PECHURIN, M.; KONDRATOVA, L.; PECHURIN, S. A method for expanding the reference model of open systems interaction. Problems of Informatization and Management, [S. l.], v. 2, n. 82, p. 63–67, 2025. DOI: 10.18372/2073-4751.82.20370. Disponível em: https://jrnl.nau.edu.ua/index.php/PIU/article/view/20370. Acesso em: 17 feb. 2026.