@article{01727712,
title = {Improvement of an Ostrowski type inequality for monotonic mappings and its application for some special means.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {2},
year = {2001},
zbl = {1006.26019},
language = {en},
url = {http://dml.mathdoc.fr/item/01727712}
}
Dragomir, S.S.; Fang, M.L. Improvement of an Ostrowski type inequality for monotonic mappings and its application for some special means.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 2 (2001) . http://gdmltest.u-ga.fr/item/01727712/