TY - JOUR T1 - A parametric frequency response method for non-linear time-varying systems JO - International Journal of Systems Science PY - 2013/01/01 AU - Guo Y AU - Guo LZ AU - Billings SA AU - Coca D AU - Lang ZQ ED - DO - DOI: 10.1080/00207721.2012.762563 Y2 - 2024/12/25 ER -