Erişim adresi : https://www.americangeosciences.org/information/georef/open-access-journals
GeoRef covers the following journals and series that are openly available on the web. Only journals and series that appear to provide stable open-access to current issues, have multiple issues available for use, and appear to plan to continue to be available in an open manner are included. Journals that require subscriptions to current issues are not included.