Tleukhanova, N.T., and K.K. Sadykova. “The Convolution in Anisotropic Besov Spaces”. Journal of Mathematics, Mechanics and Computer Science 106, no. 2 (June 26, 2020): 18–30. Accessed July 22, 2024. https://bm.kaznu.kz/index.php/kaznu/article/view/759.