Characterization of piezoelectric materials : old and new crystals B. CAPELLE, A. ZARKA, J. SCHWARTZEL, J. DETAINT, E. PHILIPPOT et J. P. DENISJ. Phys. IV France, 04 C2 (1994) C2-123-C2-134DOI: https://doi.org/10.1051/jp4:1994215