19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C; Volume 5. 5C pp.1963-1972, 2003. New York, N.Y.. American Society of Mechanical Engineers
20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C; Volume 1. 1C pp.2449-2454, 2005. New York, N.Y.. American Society of Mechanical Engineers
21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C; Volume 1. 1A pp.205-214, 2007. New York, N.Y.. American Society of Mechanical Engineers