2. Hirsh Osherowitch. "In payn gelayterte dikhtung: vegn bukhA Volkn un a veg fun Dovid Volpe"

2. Hirsh Osherowitch. "In payn gelayterte dikhtung: vegn bukhA Volkn un a veg fun Dovid Volpe", Box: 1. David Fram Papers, 36332299. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/454773 Accessed September 26, 2026.