@article{1104160352,
author = {Caliceti, Emanuela and Grecchi, Vincenzo and Maioli, Marco},
title = {Double wells: perturbation series summable to the eigenvalues and directly computable approximations},
journal = {Comm. Math. Phys.},
volume = {113},
number = {4},
year = {1988},
pages = { 625-648},
language = {en},
url = {http://dml.mathdoc.fr/item/1104160352}
}
Caliceti, Emanuela; Grecchi, Vincenzo; Maioli, Marco. Double wells: perturbation series summable to the eigenvalues and directly computable approximations. Comm. Math. Phys., Tome 113 (1988) no. 4, pp. 625-648. http://gdmltest.u-ga.fr/item/1104160352/