DOMAIN STRUCTURE IN ISING FERROMAGNET SmNi5 R. Szymczak, H. Szymczak, A. Szewczyk, J. Zawadzki, D. Gignoux, B. Gorges and R. Lemaire J. Phys. Colloques, 49 C8 (1988) C8-329-C8-330 DOI: 10.1051/jphyscol:19888146