@article{bwmeta1.element.bwnjournal-article-smv69i1p18bwm,
author = {W. Jurkat and J. Troutman},
title = {A mean value inequality for positive integral transformations with application to a maximal theorem},
journal = {Studia Mathematica},
volume = {69},
year = {1981},
pages = {227-233},
zbl = {0489.42020},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv69i1p18bwm}
}
Jurkat, W.; Troutman, J. A mean value inequality for positive integral transformations with application to a maximal theorem. Studia Mathematica, Tome 69 (1981) pp. 227-233. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv69i1p18bwm/