MAGNETIC FIELD DEPENDENCE OF HIGH Tc SEMICONDUCTING CERAMICS F. Zuo, X. D. Chen, J. R. Gaines, W. E. Farneth, R. S. McLean et A. J. Epstein J. Phys. Colloques, 49 C8 (1988) C8-2143-C8-2144 DOI: 10.1051/jphyscol:19888959