Katherine A. Bold, Chantal Edwards, John Guckenheimer, Sabyasachi Guharay, Kathleen Hoffman, Judith Hubbard, Ricardo A. Oliva, Warren Weckesser. The Forced van der Pol Equation II: Canards in the Reduced System. SIAM J. Applied Dynamical Systems, 2(4):570-608, 2003. [doi]
Abstract is missing.