Electronic structure of Sm surface studied by synchrotron-radiation-excited-photoelectron spectroscopies J.W. Allen, L.I. Johansson, R.S. Bauer, T. Gustafsson, I. Lindau and S.B.M. Hagström J. Phys. Colloques, 40 C5 (1979) C5-346-C5-347 DOI: 10.1051/jphyscol:19795120