Meinten Sie:
classificationCode:(bk\:58.0* OR bk\:58.1* OR bk\:58.2* OR ddc\:660* OR ddc\:661* OR ddc\:662*) firstHoldingDate:[NOW/DAY-12month TO NOW/DAY] selectionKey:z*
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classificationCode:(bk\:58.0* OR bk\:58.1* OR bk\:58.2* OR ddc\:660* OR ddc\:661* OR ddc\:662*) firstHoldingDate:[NOW/DAY-month TO NOW/DAY] selectionKey:z*
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classificationCode:(bk\:58.0* OR bk\:58.1* OR bk\:58.2* OR ddc\:660* OR ddc\:661* OR ddc\:662*) firstHoldingDate:[NOW/DAY-18month TO NOW/DAY] selectionKey:z*