Zh.А. Sartabanov, & G.M.Aitenova. (2019). MULTIPERIODIC SOLUTIONS OF LINEAR SYSTEMS INTEGRO-DIFFERENTIAL EQUATIONS WITH c D -OPERATOR AND  -PERIOD OF HEREDITARY. Physico-Mathematical Series, (6), 106–122. извлечено от https://journals.nauka-nanrk.kz/physics-mathematics/article/view/1697