@article{MZM_2002_71_5_a14,
     author = {M. I. Neiman-Zade},
     title = {Elliptic {Operators} with {Singular} {Coefficients}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {790--793},
     year = {2002},
     volume = {71},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2002_71_5_a14/}
}