Low frequency elastic and anelastic properties of Pb(Fe0.5Nb0.5)O3 ferroelectric ceramics R. Zachariasz and D. Bochenek Eur. Phys. J. Special Topics, 154 (2008) 253-256 Published online: 15 March 2008 DOI: 10.1140/epjst/e2008-00555-8