FERRO-HELIMAGNETIC PHASE COEXISTENCE OBSERVED BY SYNCHROTRON RADIATION AND NEUTRON TOPOGRAPHY IN MnP J. Baruchel, M. Schlenker and J. Sandonis J. Phys. Colloques, 49 C8 (1988) C8-1891-C8-1892 DOI: 10.1051/jphyscol:19888857