MAGARIL-IL’YAEV, G.; SIVKOVA, E. Optimal recovery of semi-group operators from inaccurate data. Eurasian Mathematical Journal, [S. l.], v. 10, n. 4, p. 75–84, 2019. DOI: 10.32523/2077-9879-2019-10-4-75-84. Disponível em: https://emj.enu.kz/index.php/main/article/view/164. Acesso em: 30 sep. 2026.