MAGNETIC BEHAVIOR OF TWO SUPERSTRUCTURES OF CeSn3 : Ce2Sn5 AND Ce3Sn71 M. Bonnet, J. X. Boucherle, F. Givord, P. Lejay, J. Schweizer et A. Stunault J. Phys. Colloques, 49 C8 (1988) C8-785-C8-786 DOI: 10.1051/jphyscol:19888355