@article{SVMO_2017_19_3_a5,
     author = {G. A. Smolkin},
     title = {About an a priori estimate for the second order elliptic operator degenerate alog coordinate axis orthogonal to semi-plane boundary},
     journal = {\v{Z}urnal Srednevol\v{z}skogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {64--72},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SVMO_2017_19_3_a5/}
}