@article{DE_1976_12_3_a3, author = {N. I. Gavrilov}, title = {Dynamical systems with invariant {Lebesgue} measure on the surface of a torus}, journal = {Differencialʹnye uravneni\^a}, pages = {438--445}, year = {1976}, volume = {12}, number = {3}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1976_12_3_a3/} }