%0 Journal Article %A V. V. Tolmachev %T The modified and the true formulation of the problem concerning a non-ideal Bose--Einstein system of many particles %J Doklady Akademii Nauk %D 1963 %P 794-797 %V 153 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_153_4_a14/ %G ru %F DAN_1963_153_4_a14