1.
Puza B, Ronto AM, Ronto MI, Shchobak N. On solutions of nonlinear boundary-value problems the components of which vanish at certain points. Ukr. Mat. Zhurn. [Internet]. 2018Jan.25 [cited 2024Apr.18];70(1):94-114. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/1544