Bibliographia Gersonideana
Annotated bibliography of primary and secondary sources on this medieval Jewish thinker, compiled by Menachem Kellner.
FOLDOC: Gersonides Levi ben Gershom
Brief entry and recommended reading from this philosophical database.
Gersonides
Article by Tamar Rudovsky from the Stanford Encyclopedia of Philosophy. Provides a bibliography, in addition to discussions of this philosopher's life, work and doctrine of astrological determinism.
Levi ben Gershon
Article on this medieval philosopher and astronomer, from the Jewish Encyclopedia.
Levi ben Gerson
Biographical article with links and bibliography, from the MacTutor History of Mathematics.
Wikipedia: Gersonides
Article from this openly-edited encyclopedia.