Zh.А. Sartabanov, и G.M.Aitenova. 2019. «MULTIPERIODIC SOLUTIONS OF LINEAR SYSTEMS INTEGRO-DIFFERENTIAL EQUATIONS WITH C D -OPERATOR AND  -PERIOD OF HEREDITARY». Physico-Mathematical Series, вып. 6 (декабрь):106-22. https://journals.nauka-nanrk.kz/physics-mathematics/article/view/1697.