$2\pi $ Periodic Solutions of Duffing’s Equation with Negative Stiffness

This publication has 2 references indexed in Scilit:

• Nonlinear Oscillations, Dynamical Systems, and Bifurcations of Vector Fields
  Published by Springer Nature ,1983
• A nonlinear oscillator with a strange attractor
  Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1979