@article{ASENS_1993_4_26_1_23_0,
     author = {Guivarc'h, Y. and Le Jan, Y.},
     title = {Asymptotic winding of the geodesic flow on modular surfaces and continuous fractions},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {23--50},
     publisher = {Elsevier},
     volume = {Ser. 4, 26},
     number = {1},
     year = {1993},
     doi = {10.24033/asens.1666},
     mrnumber = {94a:58157},
     zbl = {0784.60076},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.1666/}
}