@article{bwmeta1.element.bwnjournal-article-fmv48i3p265bwm,
author = {Wiliam Mahavier},
title = {Rates of change and functional relations},
journal = {Fundamenta Mathematicae},
volume = {48},
year = {1960},
pages = {265-269},
zbl = {0095.26904},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv48i3p265bwm}
}
Mahavier, Wiliam. Rates of change and functional relations. Fundamenta Mathematicae, Tome 48 (1960) pp. 265-269. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv48i3p265bwm/