Use of image treatment for the understanding of the influence of crystal defects in piezoelectric materials M. PILARD, Y. EPELBOIN, B. CAPELLE, J. DETAINT, J. SCHWARTZEL et A. ZARKA J. Phys. IV France, 04 C2 (1994) C2-53-C2-60 DOI: 10.1051/jp4:1994207