1.
Shynybekov A. ON PROPER EXPANSIONS AND PROPER CONTRACTIONS OF NONLINEAR OPERATORS REPRESENTED IN THE FORM OF A PRODUCT. JMMCS [Internet]. 2025 Sep. 29 [cited 2025 Oct. 9];127(3). Available from: https://bm.kaznu.kz/index.php/kaznu/article/view/1672