%0 Journal Article %A M. L. Byalyi %A L. V. Polterovich %T Geodesic flows on the two-dimensional torus and phase transitions ``commensurability-noncommensurability'' %J Funkcionalʹnyj analiz i ego priloženiâ %D 1986 %P 9-16 %V 20 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1986_20_4_a1/ %G ru %F FAA_1986_20_4_a1