@article{GDZPPN001177117, title = {Approximation of Hopf Bifurcation.}, journal = {Numerische Mathematik}, volume = {39}, year = {1982}, pages = {15-38}, zbl = {0456.65034}, url = {http://dml.mathdoc.fr/item/GDZPPN001177117} }
Bernardi, C. Approximation of Hopf Bifurcation.. Numerische Mathematik, Tome 39 (1982) pp. 15-38. http://gdmltest.u-ga.fr/item/GDZPPN001177117/