ЮЛДАШЕВ, Т.; АЗАМАТ. PERIODIC SOLUTIONS OF IMPULSIVE SYSTEM OF DIFFERENTIAL EQUATIONS WITH MIXED MAXIMA. Журнал математики и информатики, [S. l.], v. 3, n. 1, 2023. Disponível em: https://matinfo.jdpu.uz/index.php/matinfo/article/view/7614. Acesso em: 11 окт. 2025.