1. There are many excellent review articles on theories of surface systems like those in Surface Physics of Materials (J. M. Blakely, ed.), Academic, New York (1975)
2. Interactions on Metal Surfaces (R. Gomer, ed.), Springer-Verlag, Berlin (1975)
3. and Many-Body Phenomena at Surfaces (D. Langreth and H. Suhl, eds.), Academic, New York (1975)
4. Interactions on Metal Surfaces (R. Gomer, ed.), Springer-Verlag, Berlin (1975)
5. and Many-Body Phenomena at Surfaces (D. Langreth and H. Suhl, eds.), Academic, New York (1984).