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IEEE transactions on applied superconductivity, 11 (2001) S. 578
...Harnack, O. M....
OpenAccess 
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Adam, R.
1999
IEEE transactions on applied superconductivity, 9 (1999) S. 4091
...Harnack, O....
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IEEE transactions on applied superconductivity (1999)
...Harnack, O....
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IEEE transactions on applied superconductivity, 9 (1999) S. 3761
...Harnack, O....
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