How to merge duplicate papers, authors and sources in Papers 3 for Mac

Merge duplicate authors and sources by dragging them onto each other in the Authors and Sources screens.

Go to View > Show Duplicates (shift + cmd + D) to view all duplicate articles in your library. To merge duplicate publications, select them in the publications list and go to the metadata tab in the inspector and choose “Merge”. You can select non-sequential publications with a cmd key pressed down.

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