@article{GDZPPN002407086,
title = {The Changes of Sign of Fractional Integrals.},
journal = {Mathematische Zeitschrift},
volume = {114},
year = {1970},
pages = {183-190},
zbl = {0188.18501},
url = {http://dml.mathdoc.fr/item/GDZPPN002407086}
}
Steinig, John. The Changes of Sign of Fractional Integrals.. Mathematische Zeitschrift, Tome 114 (1970) pp. 183-190. http://gdmltest.u-ga.fr/item/GDZPPN002407086/