Koshanov B, Baiarystanov A, Daurenkyzy M, Turymbet S. GREEN’S FUNCTIONS OF SOME BOUNDARY VALUE PROBLEMS FOR BYHARMONIC OPERATORS AND THEIR CORRECT CONSTRICTIONS. PMS [Интернет]. 15 апрель 2021 г. [цитируется по 4 декабрь 2024 г.];(2):15-23. доступно на: http://550300.0ncwlf7ax.asia/physics-mathematics/article/view/280