@article{05700430, title = {Bifurcation analysis of a van der Pol-Duffing circuit with parallel resistor.}, journal = {Mathematical Problems in Engineering}, volume = {2009}, year = {2009}, doi = {10.1155/2009/149563}, zbl = {1184.94281}, language = {en}, url = {http://dml.mathdoc.fr/item/05700430} }
De Carvalho Braga, Denis; Mello, Luis Fernando; Messias, Marcelo. Bifurcation analysis of a van der Pol-Duffing circuit with parallel resistor.. Mathematical Problems in Engineering, Tome 2009 (2009) . doi : 10.1155/2009/149563. http://gdmltest.u-ga.fr/item/05700430/