BREMSSTRAHLUNG ISOCHROMAT SPECTROSCOPY OF LIGHT RARE EARTH COMPOUNDS R. STILLER, H. MERZ, W. DREWES et H.-G PURWINS J. Phys. Colloques, 48 C9 (1987) C9-997-C9-1000 DOI: 10.1051/jphyscol:19879177