Preface. Contents of volumes 1-9. 62. High-energy spectroscopy of lanthanide materials - An overview (Y. Baer and W.-D. Schneider). 63. f-Electron hybridization and dynamical screening of core holes in intermetallic compounds (M. Campagna and F.U. Hillebrecht). 64. Many-body formulation of spectra of mixed valence systems (O. Gunnarsson and K. Schönhammer). 65. Local density supercell theory of photoemission and inverse photoemission spectra (A.J. Freeman, B.I. Min and M.R. Norman). 66. Photoemission of Ce and its compounds (D.W. Lynch and J.H. Weaver). 67. Photoemission in chalcogenides (S. Hüfner). 68. Calculation of 4f excitation energies in the metals and relevance to mixed valence systems (J.F. Herbst and J.W. Wilkins). 69. Thermodynamic aspects of 4f levels in metals and compounds (B. Johansson and N. Mårtensson). 70. Bremsstrahlung isochromat spectroscopy of alloys and mixed valent compounds (F.U. Hillebrecht and M. Campagna). 71. X-ray absorption and emission spectra (J. Röhler). 72. Inelastic electron scattering measurements (F.P. Netzer and J.A.D. Matthew). Subject index.