KALMENOV, T.; SHALDANBAYEV, A.; AKYLBAYEV, M.; URMATOVA, A. ON COMPLETENESS OF ROOT VECTORS OF THE CAUCHY PROBLEM OF THE FIRST ORDER EQUATION WITH DEVIATING ARGUMENT. Известия НАН РК. Серия физико-математическая, [S. l.], n. 2, p. 50–57, 2020. Disponível em: http://89.250.84.46/physics-mathematics/article/view/400. Acesso em: 23 дек. 2024.