(1)
Il’kiv, . V. S.; Strap , N. I.; Volyanska , I. I. Solvability Conditions of a Nonlocal Boundary Value Problem for a Differential-Operator Equation With Nonlinearity in a Refined Sobolev Scale of Spaces of Functions of Several Real Variables.
Ukr. Mat. Zhurn. 2020,
72 (4), 452-466.
https://doi.org/10.37863/umzh.v72i4.2270.