@article{PA_2017_6_1_a6,
     author = {V. V. Starkov},
     title = {Structure of {Keller} mappings, two-dimensional case},
     journal = {Problemy analiza},
     pages = {68--81},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PA_2017_6_1_a6/}
}