%0 Journal Article %A V. Ya. Gutlyanskii %A V. I. Ryazanov %T Quasiconformal mappings with constraints of integral type on the M. A. Lavrent'ev characteristic %J Doklady Akademii Nauk %D 1987 %P 283-286 %V 297 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1987_297_2_a4/ %G ru %F DAN_1987_297_2_a4