On voltage-current characteristics and critical current in Bi-2212 A. Pautrat, Ch. Simon, J. Scola, C. Goupil, A. Ruyter, L. Ammor, P. Thopart and D. Plessis Eur. Phys. J. B, 43 1 (2005) 39-45 Published online: 11 February 2005 DOI: 10.1140/epjb/e2005-00025-7