MAGNETIC HYSTERESIS OF SUPERCONDUCTING GdBa2Cu3O7 DOWN TO 1.8 K S. Senoussi, P. V. S. S. Sastry, J. V. Yakhmi et I. A. Campbell J. Phys. Colloques, 49 C8 (1988) C8-2163-C8-2164 DOI: 10.1051/jphyscol:19888969