X-RAY AND UV PHOTOELECTRON SPECTRA FROM OUTER ELECTRONS OF SOME RARE EARTHS S. B. M. HAGSTRÖM, G. BRODÉN, P. O. HÉDEN and H. LÖFGREN J. Phys. Colloques, 32 C4 (1971) C4-269-C4-273 DOI: 10.1051/jphyscol:1971449