%0 Journal Article %A I. V. Zhuravlev %T Some sufficient conditions for the quasi-conformal extension of analytic functions %J Doklady Akademii Nauk %D 1978 %P 1377-1380 %V 243 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_243_6_a6/ %G ru %F DAN_1978_243_6_a6