Sherpa Romeo Search
Sherpa Romeo is an online resource that aggregates and presents publisher and journal open access policies from around the world. It is highly recommended to check publishers’ policies and licenses when depositing a published version (Version of Record) or Author Accepted Manuscript (AAM) papers to a repository. https://v2.sherpa.ac.uk/romeo/search.html There is guide available here: https://v2.sherpa.ac.uk/romeo/resources/user-guide.pdf