@article{SM_2013_204_5_a5,
     author = {A. V. Ustinov},
     title = {Spin chains and {Arnold's} problem on the {Gauss-Kuz'min} statistics for quadratic irrationals},
     journal = {Sbornik. Mathematics},
     pages = {762--779},
     publisher = {mathdoc},
     volume = {204},
     number = {5},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2013_204_5_a5/}
}