%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 %V 44 %N 2 %U http://geodesic.mathdoc.fr/articles/10.2298/TAM170512008K/ %R 10.2298/TAM170512008K %G en %F 10_2298_TAM170512008K