@article{TRSPY_1992_193_a2,
     author = {D. V. Anosov},
     title = {Flows on surfaces},
     journal = {Informatics and Automation},
     pages = {10--14},
     publisher = {mathdoc},
     volume = {193},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1992_193_a2/}
}