PARAPEGMATA (CHRONOLOGIE)
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BTZEITBESTIMMUNG, ZEITMESSUNG, ZEITÜBERTRAGUNG, ZEITREGELUNG (CHRONOLOGIE)
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UDC529.71,3
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Descriptor GERPARAPEGMATA (CHRONOLOGIE)
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Descriptor ENGPARAPEGMATA (CHRONOLOGY)
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Descriptor FREPARAPEGMATA (CHRONOLOGIE)
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Variant ENGPARAPEGMA, DEVICE FOR KEEPING TRACK OF CYCLICAL EVENTS, PARTICULARLY OF STARS, WEATHER, SEASONS, AND SO ON (CHRONOLOGY)