%0 Journal Article %A V. L. Berdichevsky %T On a variational principle of statistical mechanics %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1987 %P 50-55 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1987_4_a12/ %G ru %F VMUMM_1987_4_a12