TY  - JOUR
AU  - V. E. Shemarulin
TI  - Higher symmetries and laws of conservation of an equation of one-dimensional planar isentropic flows of a~polytropic gas
JO  - Matematičeskie zametki
PY  - 1990
SP  - 138
EP  - 140
VL  - 47
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1990_47_3_a20/
LA  - ru
ID  - MZM_1990_47_3_a20
ER  -