@Book{217048420,
author="Goldstein, Bernard R.",
title="Preliminary remarks on Levi Ben Gerson's contributions to astronomy",
series="Proceedings of the Israel Academy of Sciences and Humanities 3,9",
year="1969",
publisher="The Israel Acad. of Sciences and Humanities",
address="Jerusalem",
note="by Bernard R. Goldstein",
language="English"
}