@article{CMFD_2011_39_a6,
     author = {V. A. Popov and A. L. Skubachevskii},
     title = {Smoothness of generalized solutions of elliptic differential-difference equations with degenerations},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {130--140},
     publisher = {mathdoc},
     volume = {39},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2011_39_a6/}
}