TY - JOUR T1 - Output frequency properties of nonlinear systems JO - International Journal of Non-Linear Mechanics PY - 2010/09/01 AU - Jing XJ AU - Lang ZQ AU - Billings SA ED - DO - DOI: 10.1016/j.ijnonlinmec.2010.04.002 PB - Elsevier BV VL - 45 IS - 7 SP - 681 EP - 690 Y2 - 2025/04/05 ER -