@InProceedings GSJRA09,
author = "Giraud, Fr\'ed\'eric and Semail, Betty and Julien, ARAGONES and Robineau, Jacques and Audren, Jean-Thierry",
title = "Stability Analysis of an Ultrasonic Motor for a New Wave Amplitude Control",
booktitle = "IEEE Transactions on Industry Applications",
volume = "45",
pages = "1343--1350",
year = "2009",
}