TY  - JOUR
AU  - V. P. Kalashnikov
TI  - A new approach to the calculation of the time correlation functions and the Wick's generalized theorem
JO  - Doklady Akademii Nauk
PY  - 1978
SP  - 1089
EP  - 1092
VL  - 239
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1978_239_5_a19/
LA  - ru
ID  - DAN_1978_239_5_a19
ER  -