%0 Journal Article %A G. P. Cherepanov %T On opening of oil and gas wells %J Doklady Akademii Nauk %D 1985 %P 816-820 %V 284 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1985_284_4_a11/ %G ru %F DAN_1985_284_4_a11