%0 Journal Article %A D. S. Timonina %T Liouville classification of integrable geodesic flows in a~potential field on two-dimensional manifolds of revolution: the torus and the Klein bottle %J Sbornik. Mathematics %D 2018 %P 1644-1676 %V 209 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2018_209_11_a4/ %G en %F SM_2018_209_11_a4