@article{MZM_2014_95_5_a7,
     author = {A. B. Zaitsev},
     title = {Mappings by the {Solutions} of {Second-Order} {Elliptic} {Equations}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {718--733},
     publisher = {mathdoc},
     volume = {95},
     number = {5},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2014_95_5_a7/}
}