TY - CONF T1 - Identification of a multi-degree-of-freedom nonlinear system JO - PROCEEDINGS OF THE 15TH INTERNATIONAL MODAL ANALYSIS CONFERENCE - IMAC, VOLS I AND II PY - 1997/01/01 AU - Atkins P AU - Worden K ED - VL - 3089 SP - 1023 EP - 1028 Y2 - 2025/04/09 ER -