@article{bwmeta1.element.bwnjournal-article-fmv29i1p5bwm,
author = {A. Ward},
title = {A sufficient condition for a function of intervals to be monotone},
journal = {Fundamenta Mathematicae},
volume = {28},
year = {1937},
pages = {22-25},
zbl = {0017.00801},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv29i1p5bwm}
}
Ward, A. A sufficient condition for a function of intervals to be monotone. Fundamenta Mathematicae, Tome 28 (1937) pp. 22-25. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv29i1p5bwm/