1.
Dzhumabaev DS, Temesheva SM. Criteria for the existence of an isolated solution of a nonlinear boundary-value problem. Ukr. Mat. Zhurn. [Internet]. 2018Mar.25 [cited 2020Nov.28];70(3):356-65. Available from: http://umj.imath.kiev.ua/index.php/umj/article/view/1561