Liou, C. -Y.C. -Y.LiouCHIEN-CHENG CHANG2009-05-062018-07-052009-05-062018-07-051988http://ntur.lib.ntu.edu.tw//handle/246246/155170application/pdf674654 bytesapplication/pdfen-US[SDGs]SDG14The determination of modal damping ratios and natural frequencies from bispectrum modelingjournal article10.1016/0888-3270(88)90062-32-s2.0-45549120595http://ntur.lib.ntu.edu.tw/bitstream/246246/155170/1/02.pdf