Liou, C.Y.C.Y.LiouJeng, T.-S.T.-S.JengLiouCY2009-05-062018-07-052009-05-062018-07-051989http://ntur.lib.ntu.edu.tw//handle/246246/155172application/pdf707746 bytesapplication/pdfen-USThe determination of mode shapes from modern cross-spectral estimatesjournal article10.1016/0888-3270(89)90054-Xhttp://ntur.lib.ntu.edu.tw/bitstream/246246/155172/1/03.pdf