@article{bwmeta1.element.desklight-53a84d72-bb0b-44a4-801e-85e31c1cd15e,
author = {C. C. Travis and G. F. Webb},
title = {Perturbation of strongly continuous cosine family generators},
journal = {Colloquium Mathematicae},
volume = {44},
year = {1981},
pages = {277-285},
zbl = {0496.47039},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-53a84d72-bb0b-44a4-801e-85e31c1cd15e}
}
C. C. Travis; G. F. Webb. Perturbation of strongly continuous cosine family generators. Colloquium Mathematicae, Tome 44 (1981) pp. 277-285. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-53a84d72-bb0b-44a4-801e-85e31c1cd15e/