TY - JOUR T1 - Resonances and resonant frequencies for a class of nonlinear systems JO - J SOUND VIB PY - 2007/03/06 AU - Peng ZK AU - Lang ZQ AU - Billings SA ED - DO - DOI: 10.1016/j.jsv.2006.09.012 VL - 300 IS - 3-5 SP - 993 EP - 1014 Y2 - 2025/11/29 ER -