%0 Journal Article %A P. I. Topalov %T Critical points of the rotation function of an integrable Hamiltonian system %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1996 %P 752-753 %V 51 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1996_51_4_a15/ %G en %F RM_1996_51_4_a15