About an a priori estimate for the second order elliptic operator degenerate alog coordinate axis orthogonal to semi-plane boundary
G. A. Smolkin

This publication is cited in the following articles:

1. G. A. Smolkin, “Ob odnoi otsenke v prostranstve Soboleva, porozhdaemoivyrozhdayuschimsya ellipticheskim operatorom vtorogo poryadka, opredelennoi v poluploskosti”, Zhurnal SVMO, 20:2 (2018), 206–214