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ALBERT HÄRTL
Hans-Knöll-Institute of Natural Products Research
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A. STELZNER
Institute of Virology of the Jena University
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MICHAEL RITZAU
Hans-Knöll-Institute of Natural Products Research
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STEFAN HEINZE
Hans-Knöll-Institute of Natural Products Research
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UDO GRÄFE
Hans-Knöll-Institute of Natural Products Research