@article{ADM_2004_2_a5,
     author = {O. Bezushchak},
     title = {On growth of the inverse semigroup of partially defined co{\textendash}finite automorphisms of integers},
     journal = {Algebra and discrete mathematics},
     pages = {45--55},
     publisher = {mathdoc},
     number = {2},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2004_2_a5/}
}