FIELD-INDUCED ANOMALOUS DILATION IN FexZn1-xF2 C. A. Ramos, A. R. King, V. Jaccarino et S. M. Rezende J. Phys. Colloques, 49 C8 (1988) C8-1241-C8-1242 DOI: 10.1051/jphyscol:19888563