%0 Journal Article %A I. L. Gurevich %T Proof of the existence of a solution of a certain inverse mixed problem of gas dynamics %J Trudy seminara po kraevym zadačam %D 1971 %P 66-69 %V 8 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1971_8_8_a7/ %G ru %F KUKZ_1971_8_8_a7