%0 Journal Article %A V. V. Aseev %T Plane mappings that preserve moduli %J Doklady Akademii Nauk %D 1990 %P 1033-1034 %V 310 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_310_5_a0/ %G ru %F DAN_1990_310_5_a0