%0 Journal Article %A R. S. Sadyrkhanov %T Local and global implicit function theorems for equations with %J Doklady Akademii Nauk %D 1989 %P 1050-1053 %V 308 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_308_5_a5/ %G ru %F DAN_1989_308_5_a5