1.
Berezovsky AA, Lenyuk MP, Samoilenko AM. School-Seminar “Nonlinear boundary-value problems in Mathematical Physics and their applications”. Ukr. Mat. Zhurn. [Internet]. 1996Jun.25 [cited 2024Oct.6];48(6):863-5. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5289