@article{RM_2007_62_5_a0,
     author = {V. I. Arnol'd},
     title = {Continued fractions of square roots of~rational numbers and their statistics},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {843--855},
     publisher = {mathdoc},
     volume = {62},
     number = {5},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2007_62_5_a0/}
}