1.
Il'kiv V, Volyans'ka I. Non-local boundary value problem for partial differential equation in a complex domain. Carpathian Math. Publ. [Internet]. 2014 Jul. 12 [cited 2024 Nov. 22];6(1):44-58. Available from: https://ktipe.pnu.edu.ua/index.php/cmp/article/view/1333