Кангужин, Б. Е. and Нальжупбаева, Г. М. (2014) “ An analogue of Green’s formulae and self-adjoint operators in punctured domains”., Journal of Mathematics, Mechanics and Computer Science, 82(3), pp. 18–25. Available at: https://bm.kaznu.kz/index.php/kaznu/article/view/66 (Accessed: 3 July 2024).