TY  - JOUR
AU  - Eckmann, J.-P.
AU  - Epstein, H.
AU  - Fröhlich, J.
TI  - Asymptotic perturbation expansion for the S-matrix and the definition of time ordered functions in relativistic quantum field models
JO  - Annales de l'institut Henri Poincaré. Section A, Physique Théorique
PY  - 1976
SP  - 1
EP  - 34
VL  - 25
IS  - 1
PB  - Gauthier-Villars
UR  - http://archive.numdam.org/item/AIHPA_1976__25_1_1_0/
LA  - en
ID  - AIHPA_1976__25_1_1_0
ER  -