7Pandey A K, Biswas M, Samman M M.Damage detection from changes in curvature mode shapes[J].Journal of Sound and Vibration,1994, 154:321-322.
8Pandey A K, Biswas M.Damage detection in structures using changes in flexibility[J]. Journal of Sound and Vibration, 1994,169: 1-17.
9Raghavendrachar M, Aktan A E. Flexibility by multireference impact testing for bridge diagnostics [J ].Journal of Structural Engineering, 1992,118:186-203.
10Stubbs N,Osegueda R.Global non-destructive damage evaluation in solids-experimental vertification[J].Intemational Journal of Analytical and Experimental Model Analysis, 1990:81-97.