@article{FAA_1986_20_4_a1,
     author = {M. L. Byalyi and L. V. Polterovich},
     title = {Geodesic flows on the two-dimensional torus and phase transitions {\textquotedblleft}commensurability-noncommensurability{\textquotedblright}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {9--16},
     year = {1986},
     volume = {20},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1986_20_4_a1/}
}