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1
Journal of applied physics, 91 (2002) S. 1477 - 1481
...Williams, E. D....
OpenAccess 
2
Physical review letters, 87 (2001) S. 186102
...Williams, E. D....
OpenAccess 
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Giesen, M.
1998
Surface science, 396 (1998) S. 411 - 421
...Williams, E. D....
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