MAGNETIC STRUCTURE AND EXCITATIONS IN THE INTERMETALLIC COMPOUND MnNi K. Mikke, V. A. Udovenko, J. J. Milczarek, E. Z. Vintaikin, S. Y. Makushev and V. B. Dmitriev J. Phys. Colloques, 49 C8 (1988) C8-185-C8-186 DOI: 10.1051/jphyscol:1988879