@article{1103858041,
author = {Pohlmeyer, K.},
title = {Higher order perturbation theory for exponential Lagrangians: Third order},
journal = {Comm. Math. Phys.},
volume = {24},
number = {2},
year = {1972},
pages = { 130-148},
language = {en},
url = {http://dml.mathdoc.fr/item/1103858041}
}
Pohlmeyer, K. Higher order perturbation theory for exponential Lagrangians: Third order. Comm. Math. Phys., Tome 24 (1972) no. 2, pp. 130-148. http://gdmltest.u-ga.fr/item/1103858041/