TY - JOUR T1 - DATA-PROCESSING AND EXPERIMENT DESIGN FOR THE RESTORING FORCE SURFACE METHOD .1. INTEGRATION AND DIFFERENTIATION OF MEASURED TIME DATA JO - MECH SYST SIGNAL PR PY - 1990/07/01 AU - WORDEN K ED - VL - 4 IS - 4 SP - 295 EP - 319 Y2 - 2024/12/22 ER -