@article{1103858550,
author = {Guerra, F. and Rosen, L. and Simon, B.},
title = {The vacuum energy for $P(\phi)\_{2}$: Infinite volume limit and coupling constant dependence},
journal = {Comm. Math. Phys.},
volume = {29},
number = {1},
year = {1973},
pages = { 233-247},
language = {en},
url = {http://dml.mathdoc.fr/item/1103858550}
}
Guerra, F.; Rosen, L.; Simon, B. The vacuum energy for $P(\phi)_{2}$: Infinite volume limit and coupling constant dependence. Comm. Math. Phys., Tome 29 (1973) no. 1, pp. 233-247. http://gdmltest.u-ga.fr/item/1103858550/