@article{ARM_1978_14_4_a3,
     author = {Chajda, Ivan and Zelinka, Bohdan},
     title = {Metrics and tolerances},
     journal = {Archivum mathematicum},
     pages = {193--200},
     year = {1978},
     volume = {14},
     number = {4},
     mrnumber = {512761},
     zbl = {0414.06006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1978_14_4_a3/}
}