@article{GDZPPN002036398,
title = {On a functional inequality.},
journal = {Aequationes mathematicae},
volume = {33},
year = {1987},
pages = {213-215},
zbl = {0625.39012},
url = {http://dml.mathdoc.fr/item/GDZPPN002036398}
}
Walorski, Janusz. On a functional inequality.. Aequationes mathematicae, Tome 33 (1987) pp. 213-215. http://gdmltest.u-ga.fr/item/GDZPPN002036398/