Zhu, Y. and Luo, A.C.J. 2026. Periodic Motions with Impact Chatters in an Impact Double-well Duffing Oscillator. Discontinuity, Nonlinearity, and Complexity. 16, 1 (Sep. 2026), 147–188. DOI:https://doi.org/10.5890/DNC.2027.03.011.