Arulraj, I. and Tietz, F. and Gupta, A. and Jungen, W. and Wessel, E. and Buchkremer, H.P. and Stoever, D. (2000) On the synthesis and characteriation of bismuth containing superconductors as contact layer material intermediate temperature solid oxide fuel cells (ITSOFC). Transactions of the SAEST, 35 (2).