@article{AIHPA_1985__43_1_1_0,
author = {Houard, Jean-Claude and Irac-Astaud, M.},
title = {Star algebra and Green functions of nonlinear differential equations},
journal = {Annales de l'I.H.P. Physique th\'eorique},
volume = {43},
year = {1985},
pages = {1-27},
mrnumber = {813138},
zbl = {0579.34019},
language = {en},
url = {http://dml.mathdoc.fr/item/AIHPA_1985__43_1_1_0}
}
Houard, J. C.; Irac-Astaud, M. Star algebra and Green functions of nonlinear differential equations. Annales de l'I.H.P. Physique théorique, Tome 43 (1985) pp. 1-27. http://gdmltest.u-ga.fr/item/AIHPA_1985__43_1_1_0/
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[5] , Éléments de Mathématique, Livre II, Chap. II, Hermann, Paris, 1955.