@article{GDZPPN002330326,
title = {Positivity and Regularity of Hyperbolic Volterra Equations in Banach Spaces.},
journal = {Mathematische Annalen},
volume = {277},
year = {1987},
pages = {317-344},
zbl = {0608.45007},
url = {http://dml.mathdoc.fr/item/GDZPPN002330326}
}
Prüss, Jan. Positivity and Regularity of Hyperbolic Volterra Equations in Banach Spaces.. Mathematische Annalen, Tome 277 (1987) pp. 317-344. http://gdmltest.u-ga.fr/item/GDZPPN002330326/