Electrodynamics of the vortex lattice in untwinned YBaCuO by complex impedance measurements A. Pautrat, A. Daignere, C. Goupil, Ch. Simon, B. Andrzejewski, A. I. Rykov and S. Tajima Eur. Phys. J. B, 33 3 (2003) 279-284 Published online: 20 June 2003 DOI: 10.1140/epjb/e2003-00167-6