%0 Journal Article %A V. A. Zhelnorovich %T On obtaining equations of state by means of a variational %J Doklady Akademii Nauk %D 1991 %P 1092-1096 %V 316 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_316_5_a16/ %G ru %F DAN_1991_316_5_a16