@article{1103860119,
author = {Berg\`ere, M. C. and Lam, Yuk-Ming P.},
title = {Asymptotic expansion of Feynman amplitudes. I. The convergent case},
journal = {Comm. Math. Phys.},
volume = {35},
number = {1},
year = {1974},
pages = { 1-32},
language = {en},
url = {http://dml.mathdoc.fr/item/1103860119}
}
Bergère, M. C.; Lam, Yuk-Ming P. Asymptotic expansion of Feynman amplitudes. I. The convergent case. Comm. Math. Phys., Tome 35 (1974) no. 1, pp. 1-32. http://gdmltest.u-ga.fr/item/1103860119/