Kohler 1901, p. 9 Kohler, Kaufmann (1901). "Aaron ben Elijah the Younger, of Nicomedia". In Singer, Isidore (ed.). The Jewish Encyclopedia: A Descriptive Record of the History, Religion, Literature, and Customs of the Jewish People from Earliest Times. New York, NY: Ktav Publishing House. ASINB000B68W5S.
Kohler 1901, p. 10 Kohler, Kaufmann (1901). "Aaron ben Elijah the Younger, of Nicomedia". In Singer, Isidore (ed.). The Jewish Encyclopedia: A Descriptive Record of the History, Religion, Literature, and Customs of the Jewish People from Earliest Times. New York, NY: Ktav Publishing House. ASINB000B68W5S.
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Kohler 1901, p. 9 Kohler, Kaufmann (1901). "Aaron ben Elijah the Younger, of Nicomedia". In Singer, Isidore (ed.). The Jewish Encyclopedia: A Descriptive Record of the History, Religion, Literature, and Customs of the Jewish People from Earliest Times. New York, NY: Ktav Publishing House. ASINB000B68W5S.
Kohler 1901, p. 10 Kohler, Kaufmann (1901). "Aaron ben Elijah the Younger, of Nicomedia". In Singer, Isidore (ed.). The Jewish Encyclopedia: A Descriptive Record of the History, Religion, Literature, and Customs of the Jewish People from Earliest Times. New York, NY: Ktav Publishing House. ASINB000B68W5S.