"Paul Kahle". Catalogus Professorum Halensis, Martin-Luther-Universität Halle-Wittenberg. (in German)
jstor.org
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Milwright, Marcus. “ON THE DATE OF PAUL KAHLE’S EGYPTIAN SHADOW PUPPETS.” Muqarnas, vol. 28, 2011, pp. 43–68. JSTOR website Retrieved 10 Mar. 2023.