A Raman and dielectric study of ferroelectric Ba(Ti1-xZrx)O3 ceramics R. Farhi, M. El Marssi, A. Simon and J. Ravez Eur. Phys. J. B, 9 4 (1999) 599-604 Published online: 15 June 1999 DOI: 10.1007/s100510050803