%0 Journal Article %A V. A. Zhelnorovich %T The variational principle and the equations of state for continuous media %J Doklady Akademii Nauk %D 1969 %P 55-58 %V 184 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_184_1_a13/ %G ru %F DAN_1969_184_1_a13