1. S.W. Doebling, C.R. Farrar, M.B. Prime, D.W. Shevitz, Damage identification and health monitoring of structural and mechanical systems from changes in their vibration characteristics: a literature review, Technical Report LA-13070-MS, Los Alamos National Laboratory, 1996.
2. M.B. Prime, D.W. Shevitz, Linear and non-linear methods for detecting cracks in beams, Proceedings of the 14th International Modal Analysis Conference, 1996, pp. 1437–1443.
3. D.M. Donskoy, A.E. Ekimov, A.M. Sutin, Detection and characterization of defects with vibro-acoustic modulation technique, Emerging Technologies in NDT, 2000, pp. 153–157.
4. Damage assessment in reinforced concrete using spectral and temporal non-linear vibration techniques;Van Den Abeele;Journal of Cement and Concrete Research,2000
5. P. Crespo, R. Ruotolo, C. Surace, Non-linear modelling of a cracked beam, Proceedings of the 14th International Modal Analysis Conference, 1996, pp. 1017–1022.