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Physics letters / A, 375 (2011) S. 1167 - 1171
...Hirschfeld, Julian...
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International journal of energy research, 34 (2010) S. 284 - 292
...Hirschfeld, Julian...
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International journal of energy research, 34 (2010) S. 293 - 302
...Hirschfeld, Julian...
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Journal of physics / A, 42 (2009) S. 495205
...Hirschfeld, Julian...
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