Meinten Sie:
classificationCode:(bk\:51.* OR bk\:58.41 OR ddc\:620.1* NOT ddc\:620.1) databaseDate:[NOW/DAY-month TO NOW/DAY]
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classificationCode:(bk\:51.* OR bk\:58.41 OR ddc\:620.1* NOT ddc\:620.1) databaseDate:[NOW/DAY-1month TO NOW/DAY]
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classificationCode:(bk\:51.* OR bk\:58.41 OR ddc\:620.1* NOT ddc\:620.1) databaseDate:[NOW/DAY-62month TO NOW/DAY]
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classificationCode:(bk\:51.* OR bk\:58.41 OR ddc\:620.1* NOT ddc\:620.1) databaseDate:[NOW/DAY-6months TO NOW/DAY]
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classificationCode:(bk\:51.* OR bk\:58.41 OR ddc\:620.1* NOT ddc\:620.1) databaseDate:[NOW/DAY-9month TO NOW/DAY]