@article{IM2_2008_72_5_a5,
     author = {A. V. Ustinov},
     title = {Asymptotic behaviour of the first and second moments for the number of steps in the {Euclidean} algorithm},
     journal = {Izvestiya. Mathematics},
     pages = {1023--1059},
     year = {2008},
     volume = {72},
     number = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2008_72_5_a5/}
}