@article{bwmeta1.element.bwnjournal-article-smv45i1p5bwm,
author = {Andrew Vogt},
title = {Maps which preserve equality of distance},
journal = {Studia Mathematica},
volume = {48},
year = {1973},
pages = {43-48},
zbl = {0222.46015},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv45i1p5bwm}
}
Vogt, Andrew. Maps which preserve equality of distance. Studia Mathematica, Tome 48 (1973) pp. 43-48. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv45i1p5bwm/