Amplitude Dependent Internal Friction and Magneto-Acoustic Effects in YBCO Ceramics B. K. Kardashev, S. P. Nikanorov, P. Devos et R. De BatistJ. Phys. IV France, 06 C8 (1996) C8-477-C8-480DOI: https://doi.org/10.1051/jp4:19968103