@article{00844421,
title = {A note on metric preserving functions.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {19},
year = {1996},
pages = {199-200},
doi = {10.1155/S0161171296000282},
zbl = {0840.26006},
language = {en},
url = {http://dml.mathdoc.fr/item/00844421}
}
Dobos, Jozef; Piotrowski, Zbigniew. A note on metric preserving functions.. International Journal of Mathematics and Mathematical Sciences, Tome 19 (1996) pp. 199-200. doi : 10.1155/S0161171296000282. http://gdmltest.u-ga.fr/item/00844421/