Guided ultrasonic waves in the tri-layer structures. Application to the non destructive ultrasonic testing of the bonding quality of sheetsB. Bougaze, M. Sidki and A. RamdaniEur. Phys. J. Appl. Phys., 32 3 (2005) 207-212DOI: https://doi.org/10.1051/epjap:2005090