SYNTHESIS AND CHEMISTRY OF THE NEW Y-BASED AND Bi-BASED HIGH TEMPERATURE SUPERCONDUCTING PEROVSKITES J. M. Tarascon, P. Barboux, P. F. Miceli, B. G. Bagley, L. H. Greene, G. W. Hull et M. Giroud J. Phys. Colloques, 49 C8 (1988) C8-2081-C8-2086 DOI: 10.1051/jphyscol:19888942