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- [3] SIMPLIFIED METHOD FOR EVALUATING THE NATURAL FREQUENCIES AND CORRESPONDING MODAL SHAPES OF MULTISTOREY FRAMES. 1981, 59 B (01): : 1 - 9
- [4] Natural frequencies and modal shapes of composite cylindrical panels with local damages SHELL STRUCTURES: THEORY AND APPLICATIONS, VOL 3, 2014, : 277 - 280
- [6] Damage identification in a parabolic arch by means of natural frequencies, modal shapes and curvatures Meccanica, 2016, 51 : 2847 - 2859