TY  - JOUR
AU  - Leviatan, Talma
TI  - Creation of Mass Processes and Perturbation Theory
JO  - Canadian journal of mathematics
PY  - 1973
SP  - 456
EP  - 467
VL  - 25
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-046-5/
DO  - 10.4153/CJM-1973-046-5
ID  - 10_4153_CJM_1973_046_5
ER  -