@article{10_4153_CMB_1970_011_5,
     author = {Norris, C. W.},
     title = {Sequences of {Contractions} in a {Generalized} {Metric} {Space}},
     journal = {Canadian mathematical bulletin},
     pages = {55--58},
     year = {1970},
     volume = {13},
     number = {1},
     doi = {10.4153/CMB-1970-011-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1970-011-5/}
}