CRYSTAL-FIELD EFFECTS IN REBa2Cu3O7 V. Nekvasil, J. Stehno, J. ebek, L. Havela, V. Sechovský et P. Svoboda J. Phys. Colloques, 49 C8 (1988) C8-2177-C8-2178 DOI: 10.1051/jphyscol:19888976