@article{bwmeta1.element.bwnjournal-article-fmv30i1p17bwm,
author = {A. Ward},
title = {Remark on the symmetrical derivates of additive functions of intervals},
journal = {Fundamenta Mathematicae},
volume = {30},
year = {1938},
pages = {100-103},
zbl = {0018.11404},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv30i1p17bwm}
}
Ward, A. Remark on the symmetrical derivates of additive functions of intervals. Fundamenta Mathematicae, Tome 30 (1938) pp. 100-103. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv30i1p17bwm/