References
- Schulz , GJ . 1973 . Rev. Mod. Phys. , 45 ( 3 ) : 423
- Jesnsen , ET and Palmer , RE . 1990 . Surf. Sci. , 233 : 269
- Schulz , GJ . 1964 . Phys. Rev. , 135 ( 4A ) : 988
- Herzenberg , A and Mandl , F . 1962 . Proc. R. Soc. A , 270 : 48
- Herzenberg , A . 1968 . J. Phys. B , 2 ( 1 ) : 548
- Ehrhardt , H , Langhans , L , Linder , F and Taylor , HS . 1968 . Phys. Rev. , 173 : 222
- Demuth , JE , Schmeisser , D and Avouris , Ph . 1981 . Phys. Rev. Lett. , 47 : 1166
- Sanche , L and Michaud , M . 1984 . Phys. Rev. B , 30 : 6078
- Jacobi , K , Astaldi , C , Geng , P and Bertolo , M . 1989 . Surf. Sci. , 223 : 569
- R.E. Palmer, PhD thesis, Cambridge, 1986.
- Bocktor , AB . 2009 . J. Phys. B , 42 ( 4 ) : 440112
- Read , FH . 1968 . J. Phys. B , 2 ( 1 ) : 893