Large intergranular critical currents in joined YBCO monoliths H. Walter, Ch. Jooss, F. Sandiumenge, B. Bringmann, M. P. Delamare, A. Leenders and H. C. Freyhardt Europhys. Lett., 55 1 (2001) 100-104 Published online: 01 December 2003 DOI: 10.1209/epl/i2001-00387-4