@article{JIS_2002__5_2_a2,
     author = {Everest, Graham and van der Poorten, Alf J. and Puri, Yash and Ward, Thomas B.},
     title = {Integer sequences and periodic points},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2002__5_2_a2/}
}