@article{GDZPPN00126303X,
title = {Spectral mapping theorem for integrated semigroups.},
journal = {Semigroup forum},
volume = {46},
year = {1993},
pages = {359-372},
zbl = {0812.47036},
url = {http://dml.mathdoc.fr/item/GDZPPN00126303X}
}
Day, C.R. Spectral mapping theorem for integrated semigroups.. Semigroup forum, Tome 46 (1993) pp. 359-372. http://gdmltest.u-ga.fr/item/GDZPPN00126303X/