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Applied physics letters, 27 (1999) S. 1440 - 1442
...1999...
OpenAccess  OpenAccess 
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Journal of applied physics, 85 (1999) S. 8242 - 8246
...1999...
OpenAccess  OpenAccess 
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Physical review / B, 59 (1999) S. 11532 - 11538
...1999...
OpenAccess  OpenAccess 
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