%0 Journal Article %A Alexander V. Karapetyan %A Alexander S. Kuleshov %T The Routh theorem for mechanical systems with unknown first integrals %J Theoretical and applied mechanics %D 2017 %P 169 - 180 %V 44 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAM_2017_44_2_a4/ %F TAM_2017_44_2_a4