@article{702205, title = {Control and the van der Pol equation}, booktitle = {Equadiff IV}, series = {GDML\_Books}, publisher = {Springer-Verlag}, address = {Berlin}, year = {1979}, pages = {[73]-80}, mrnumber = {MR0535325}, zbl = {0401.49019}, url = {http://dml.mathdoc.fr/item/702205} }
Conti, R. Control and the van der Pol equation, dans Equadiff IV, GDML_Books, (1979), pp. [73]-80. http://gdmltest.u-ga.fr/item/702205/