How to batch delete unnecessary literature in EndNote?

Batch deletion of unnecessary literature in EndNote is feasible and efficient through its integrated library management and filtering tools. This function allows users to systematically remove multiple irrelevant references simultaneously. Key prerequisites include ensuring library backups exist and the target references for deletion have been correctly identified, usually by grouping them into a specific "Group," applying an appropriate filter (like references with no attachments), or using the "Find Duplicates" feature. Crucially, deletion is permanent and cannot be undone, emphasizing the necessity of the initial backup; users must also diligently verify the selection scope before confirming deletion to prevent accidental data loss. The typical implementation involves first isolating the unwanted references: create a Group containing them or use the "Find Duplicates" tool to identify candidates. Then, within the filtered view or group, select the entries (using Shift+Click or Ctrl/Cmd+Click for multiple selections, or Ctrl/Cmd+A for all displayed). Finally, press the "Delete" key or right-click and choose "Delete References," confirming the prompt. This is particularly valuable for decluttering libraries after large imports or eliminating confirmed duplicates systematically.