%0 Journal Article %A B. N. Apanasov %A V. V. Savin %T On a conjecture in the theory of spatial quasi-conformal mappings %J Doklady Akademii Nauk %D 1977 %P 737-739 %V 234 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_234_4_a0/ %G ru %F DAN_1977_234_4_a0