%0 Journal Article %A N. A. Luk'yanov %T Solving direct problem of mixed sub- and supersonic gas flow in a nozzle of finite length %J Doklady Akademii Nauk %D 1972 %P 56-59 %V 207 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1972_207_1_a12/ %G ru %F DAN_1972_207_1_a12