%0 Journal Article %A V. V. Trofimov %T Completely integrable geodesic flows of left-invariant metrics on Lie groups which are connected with commutative graded algebras with Poincar\'e duality %J Doklady Akademii Nauk %D 1982 %P 812-816 %V 263 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_263_4_a10/ %G ru %F DAN_1982_263_4_a10