TY  - JOUR
AU  - Yan, Jia-An
TI  - A perturbation theorem for semigroups of linear operators
JO  - Séminaire de probabilités de Strasbourg
PY  - 1988
SP  - 89
EP  - 91
VL  - 22
PB  - Springer - Lecture Notes in Mathematics
UR  - http://www.numdam.org/item/SPS_1988__22__89_0/
LA  - fr
ID  - SPS_1988__22__89_0
ER  -