%0 Journal Article %A A. I. Markovskiǐ %T The steady output of a~well opening up two gas-bearing strata %J Sibirskij žurnal industrialʹnoj matematiki %D 2010 %P 101-112 %V 13 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJIM_2010_13_3_a11/ %G ru %F SJIM_2010_13_3_a11