RADJABOV, Tirkash; NURMURODOV, Jasurbek; ALIEV, Nizomiddin. Existence conditions for periodic solutions for differential equations with piecewise constant arguments of mixed type. «ACTA NUUz», [S. l.], v. 2, n. 2.1, p. 92–98, 2026. Disponível em: http://journals.nuu.uz/index.php/actanuuz/article/view/11810. Acesso em: 30 apr. 2026.