TY  - JOUR
AU  - O. I. Zavialov
AU  - P. B. Medvedev
TI  - The~$R$-operation in the $\lambda\varphi^4$-theory as a~consequence of an~indefinite metric in the extended space of states (lowest orders)
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1974
SP  - 27
EP  - 38
VL  - 18
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1974_18_1_a2/
LA  - ru
ID  - TMF_1974_18_1_a2
ER  -