You will be retrieving large numbers of citations - possibly hundreds - with your literature search.
It's crucial to store and organize these citations in a systematic way:
Citation management software helps you to:
The information below provides a good overview of how citation management software works and suggests some free options.
Note that some free citation managers may not be robust enough to handle a large evidence synthesis review or to perform well at removing duplicate citations.
This page highlights a few of the most popular citation management tools. Many more free and paid tools may be found online. A more extensive list may be found here.
zoterobib is an excellent tool that creates citations using ISBNs, DOIs, PMIDs...