MAGNETIC STRUCTURES AND SUPERCONDUCTIVITY IN (Sn1-xErx) (1) Er (2)4 Rh6Sn18 WITH x = 0, 0.42 AND 0.61 P. Bordet, J. L. Hodeau, P. Wolfers, J. L. Raggazoni, J. L. Génicon, R. Tournier, P. Chaudouet, F. Weiss, G. Espinosa and M. Marezio J. Phys. Colloques, 49 C8 (1988) C8-401-C8-402 DOI: 10.1051/jphyscol:19888182