TY - JOUR AU - E. V. Mamontov TI - Group properties of 2-submodels for the stationary class of gas-dynamic equations JO - Sibirskij žurnal čistoj i prikladnoj matematiki PY - 2007 SP - 72 EP - 84 VL - 7 IS - 1 UR - http://geodesic.mathdoc.fr/item/VNGU_2007_7_1_a5/ LA - ru ID - VNGU_2007_7_1_a5 ER -