%0 Journal Article %A A. P. Kopylov %T On the behavior of quasi-conformal space mappings, close to conformal ones on hyperplanes %J Doklady Akademii Nauk %D 1973 %P 1278-1280 %V 209 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_209_6_a6/ %G ru %F DAN_1973_209_6_a6