@article{RM_1990_45_3_a1,
     author = {L. A. Bunimovich and Ya. G. Sinai and N. I. Chernov},
     title = {Markov partitions for two-dimensional hyperbolic billiards},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {105--152},
     publisher = {mathdoc},
     volume = {45},
     number = {3},
     year = {1990},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1990_45_3_a1/}
}