%0 Journal Article %A V. V. Starkov %T Structure of Keller mappings, two-dimensional case %J Problemy analiza %D 2017 %P 68-81 %V 6 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PA_2017_6_1_a6/ %G en %F PA_2017_6_1_a6