@article{RMI_2007_2007_1_a25,
     author = {Bermudo, S. and  Mancera, C. H. and  Pa\'ul, P. J. and  Vasyunin, V.},
     title = {Quasi-similarity of contractions having a 2{\texttimes}1 characteristic function.},
     journal = {Revista matem\'atica iberoamericana},
     pages = {677-704},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMI_2007_2007_1_a25/}
}