1987, J. Phys. C, 20, 4019, 10.1088/0022-3719/20/26/008
G. Prasad, 1988, J. Phys. D, 21, 1028, 10.1088/0022-3727/21/6/029
R. Coehoorn, 1987, Phys. Rev. B, 35, 6195, 10.1103/PhysRevB.35.6195
K.-K. Kam, 1984, J. Phys. C, 17, 4031, 10.1088/0022-3719/17/22/021
Th. Straub, 1996, Phys. Rev. B, 53, R16, 10.1103/PhysRevB.53.R16152
M. Skibowski, 1994, J. Electron Spectrosc. Relat. Phenom., 68, 77, 10.1016/0368-2048(94)02104-X
P. W. Erdman, 1982, Rev. Sci. Instrum., 53, 225, 10.1063/1.1136932
R. Manzke, 1987, Phys. Rev. Lett., 58, 610, 10.1103/PhysRevLett.58.610
L. Kipp, 1991, Proc. SPIE, 1361, 794, 10.1117/12.24292
L. Kipp, 1995, Solid State Commun., 93, 603, 10.1016/0038-1098(94)00598-7
O. K. Andersen, 1975, Phys. Rev. B, 12, 3060, 10.1103/PhysRevB.12.3060
V. V. Nemoshkalenko, 1982, Phys. Status Solidi B, 120, 283, 10.1002/pssb.2221200130
E. E. Krasovskii, 1995, Solid State Commun., 93, 775, 10.1016/0038-1098(94)00730-6
E. E. Krasovskii, 1994, J. Electron Spectrosc. Relat. Phenom., 68, 157, 10.1016/0368-2048(94)02113-9
V. N. Antonov, 1993, Low Temp. Phys., 19, 494
B. Wenzien, 1995, Phys. Rev. B, 51, 14, 10.1103/PhysRevB.51.14701
