@article{IM_1993__114_1_144146,
     author = {Isaac Efrat},
     title = {Dynamics of the continued fraction map and the spectral theory of {SL} (2, {Z).}},
     journal = {Inventiones mathematicae},
     pages = {207--218},
     publisher = {mathdoc},
     volume = {114},
     number = {1},
     year = {1993},
     zbl = {0811.11037},
     url = {http://geodesic.mathdoc.fr/item/IM_1993__114_1_144146/}
}