@inproceedings{inproceedingse69bf1a3,
title   = {The ultrasonic determination of elastic constants of composite materials using a diffraction free receiver},
author = {Adamowski, Júlio Cezar and Andrade, Marco Aurélio Brizzotti and Buiochi, Flávio and Perez, Nicolas},
year = {2009},
publisher = {ABCM},
booktitle   = {International Congress of Mechanical Engineering}
}