@article{05700461, title = {Double Hopf bifurcation with strong resonances in delayed systems with nonlinearities.}, journal = {Mathematical Problems in Engineering}, volume = {2009}, year = {2009}, doi = {10.1155/2009/759363}, zbl = {1190.37059}, language = {en}, url = {http://dml.mathdoc.fr/item/05700461} }
Xu, J.; Chung, K.W. Double Hopf bifurcation with strong resonances in delayed systems with nonlinearities.. Mathematical Problems in Engineering, Tome 2009 (2009) . doi : 10.1155/2009/759363. http://gdmltest.u-ga.fr/item/05700461/