@article{01370674,
title = {Regularized functional calculi, semigroups, and cosine functions for pseudodifferential operators.},
journal = {Abstract and Applied Analysis},
volume = {2},
year = {1997},
pages = {121-136},
doi = {10.1155/S1085337597000304},
zbl = {0937.47015},
language = {en},
url = {http://dml.mathdoc.fr/item/01370674}
}
deLaubenfels, Ralph; Lei, Yansong. Regularized functional calculi, semigroups, and cosine functions for pseudodifferential operators.. Abstract and Applied Analysis, Tome 2 (1997) pp. 121-136. doi : 10.1155/S1085337597000304. http://gdmltest.u-ga.fr/item/01370674/