Showing papers by "Claus J. Nielsen published in 1978"
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74 citations
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40 citations
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34 citations
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31 citations
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28 citations
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27 citations
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21 citations
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18 citations
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17 citations
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74 citations
40 citations
34 citations
31 citations
28 citations
27 citations
21 citations
18 citations
17 citations