@article{CMUC_1987_28_1_a16,
     author = {Hor\'ak, Karel and M\"uller, Vladim{\'\i}r},
     title = {On the structure of commuting isometries},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {165--171},
     year = {1987},
     volume = {28},
     number = {1},
     mrnumber = {889778},
     zbl = {0619.47014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1987_28_1_a16/}
}