1. Columbia University Rare Book & Manuscript Library, MS X893.19 Z6 no.1 DS ID: DS19445 Title: Document Place: Belogorsk and Ukraine Date: 19th century.
2. Columbia University Rare Book & Manuscript Library, MS X893 M6872 DS ID: DS19540 Title: Talmudic text Author: Shlomo Kluger Place: Ukraine Date: 18--