Vortex pinning in an irradiated Bi-2212 single crystal: What about the screening of the transverse magnetic field? A. Ruyter, D. Plessis, P. Topart, J. Plain, C. Simon and L. Ammor J. Phys. IV France, 114 (2004) 371-372 DOI: 10.1051/jp4:2004114086