2 citations to https://www.mathnet.ru/eng/emj48

1. Trans. Moscow Math. Soc., 75 (2014), 115–131      
2. Koshanov B.D., “on the Solvability of Boundary Value Problems For the Nonhomogeneous Polyharmonic Equation in a Ball”, International Conference on Analysis and Applied Mathematics (ICAAM 2014), AIP Conference Proceedings, 1611, eds. Ashyralyev A., Malkowsky E., Amer Inst Physics, 2014, 119–126