@article{GDZPPN002293331,
title = {Deformations of G-Structures. Part A: General Theory of Deformations.},
journal = {Mathematische Annalen},
volume = {154},
year = {1964},
pages = {292-315},
zbl = {0133.15503},
url = {http://dml.mathdoc.fr/item/GDZPPN002293331}
}
GRIFFITHS, P.A. Deformations of G-Structures. Part A: General Theory of Deformations.. Mathematische Annalen, Tome 154 (1964) pp. 292-315. http://gdmltest.u-ga.fr/item/GDZPPN002293331/