Meinten Sie:
+classificationCode:(bk\:48.* OR ddc\:635*) databaseDate:[NOW/DAY-month TO NOW/DAY]
•
+classificationCode:(bk\:48.* OR ddc\:635*) databaseDate:[NOW/DAY-1month TO NOW/DAY]
•
+classificationCode:(bk\:48.* OR ddc\:635*) databaseDate:[NOW/DAY-6months TO NOW/DAY]
•
+classificationCode:(bk\:48.* OR ddc\:635*) databaseDate:[NOW/DAY-9month TO NOW/DAY]