%0 Journal Article %A E. V. Mamontov %T Group properties of 2-submodels for the stationary class of gas-dynamic equations %J Sibirskij žurnal čistoj i prikladnoj matematiki %D 2007 %P 72-84 %V 7 %N 1 %U http://geodesic.mathdoc.fr/item/VNGU_2007_7_1_a5/ %G ru %F VNGU_2007_7_1_a5