It is possible the same record was entered twice in your database. You can remove duplicate records using the “Eliminate Duplicates” tool. “Eliminate Duplicates” only removes duplicate records in the current references list. If you want to remove all duplicates in your database, you should first click on the menu command “References | Retrieve All”. Click on the menu command “Tools | Utility | Eliminate Duplicates”. You can define what a duplicate is by checking the data fields to use.
Eliminate duplicates using fuzzy comparison
When you have a large collection of bibliographic records, the same record may be entered twice, or it may be imported more than once due to different formatting by information providers. In such cases, you need to use fuzzy comparison. You can change the degree of fuzziness by dragging the track bar. With fuzzy search, Biblioscape will mark all duplicate records and retrieve them after the search. You can then examine the duplicates and do data merge before deleting one of the duplicates.
Note: Using fuzzy comparison to eliminate duplicates is very slow. You can do this when you have finished using Biblioscape. So, while Biblioscape is removing duplicates using fuzzy search, you can work on something else with your computer.