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International journal of mass spectrometry, 228 (2003)
...Becker, J. S....
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Fresenius' journal of analytical chemistry, 368 (2000) S. 79 - 87
...Becker, J. S....
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Fresenius' journal of analytical chemistry, 368 (2000) S. 173 - 181
...Becker, J. S....
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Geostandards and geoanalytical research, 24 (2000) S. 87 - 133
...Becker, J. S....
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Atomic spectroscopy, 21 (2000) S. 37 - 41
...Becker, J. S....
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