TY  - JOUR
AU  - G.F. Webb
TI  - A representation formula for strongly continuous cosine families.
JO  - Aequationes mathematicae
PY  - 1980
SP  - 251
EP  - 256
VL  - 21
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1980__21_182435/
ID  - AM2_1980__21_182435
ER  -