B. Jaffe, W. R. Cook, and H. Jaffe, Piezoelectric Ceramics, Journal of the American Ceramic Society, vol.36, issue.11, 1971.
DOI : 10.1143/JPSJ.7.333

G. Catalan and J. F. Scott, Physics and Applications of Bismuth Ferrite, Advanced Materials, vol.10, issue.2, p.2463, 2009.
DOI : 10.1002/adma.200802849