ELECTRON SPIN POLARIZATION IN PHOTOEMISSION FROM DYSPROSIUM AND GADOLINIUM AND THE ROLE OF ELECTRON-MAGNON SCATTERING U. BÄNNINGER, G. BUSCH, M. CAMPAGNA et H. C. SIEGMANN J. Phys. Colloques, 32 C1 (1971) C1-290-C1-292 DOI: 10.1051/jphyscol:1971198