@article{GDZPPN001179985,
title = {Finite Dimensional Approximation of Bifurcation Problems in Presence of Symmetries.},
journal = {Numerische Mathematik},
volume = {50},
year = {1986},
pages = {137-198},
zbl = {0562.65073},
url = {http://dml.mathdoc.fr/item/GDZPPN001179985}
}
Raugel, G. Finite Dimensional Approximation of Bifurcation Problems in Presence of Symmetries.. Numerische Mathematik, Tome 50 (1986) pp. 137-198. http://gdmltest.u-ga.fr/item/GDZPPN001179985/