@article{CMUC_1974_15_3_a7,
     author = {Cherenack, Paul},
     title = {The topological nature of algebraic contractions},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {481--499},
     year = {1974},
     volume = {15},
     number = {3},
     mrnumber = {0354659},
     zbl = {0299.14012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1974_15_3_a7/}
}