%0 Journal Article %A K. Dzhusupov %A K. P. Stanyukovich %T Rarefaction wave and expansion of medium in a variable gravitational field %J Doklady Akademii Nauk %D 1968 %P 809-812 %V 180 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_180_4_a10/ %G ru %F DAN_1968_180_4_a10