1.
Il’kiv VS, Strap NI, Volyanska II. Solvability conditions of a nonlocal boundary value problem for a differential-operator equation with nonlinearity in a refined Sobolev scale of spaces of functions of several real variables. Ukr. Mat. Zhurn. [Internet]. 2020Mar.30 [cited 2024Nov.21];72(4):452-66. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2270