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| 100 | 1 | _aEmmerich, Christiane | |
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_aComparing first level patent data with value-added patent information : _ba case study in the pharmaceutical field |
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_aPatentdokumentation _93575 |
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_aDatenbank _9977 |
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_aDerwent _9727 |
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_aPharmazie _93626 |
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_aCAPLUS _9569 |
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_aWPI. 31(2009),2,117-122. _wz_WPI |
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_c9962 _d9962 |
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