1.
Zavorotinskii AV. On Elliptic Boundary-Value Problems with Small Parameter and Additional Functions on the Boundary of a Domain. Ukr. Mat. Zhurn. [Internet]. 2014Sep.25 [cited 2024Apr.26];66(9):1269–1275. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2218