Pressure Induced Valence Transitions in f-Electron Systems
  A review is given of pressure induced valence transitions in f-electron systems calculated with the self-interaction corrected local spin density (SIC-LSD) approximation. These calculations show that the SIC-LSD is able to describe valence changes as a function of pressure or chemical composition. An important finding is the dual character of the f-electrons as either localized or band-like. A finite temperature generalisation is presented and applied to the study of the p-T phase diagram of the alpha to gamma phase transition in Ce. 
W. M. Temmerman, A. Svane, L. Petit, M. Lueders, P. Strange, and Z.   Szotek