La Revue de Photographie 4 (December 1906). opp. p. 376.
Stieglitz, Alfred, ed. Camera Work: A Photographic Quarterly 21 (January 1908). no. XI.
Naef, Weston J. The Collection of Alfred Stieglitz: Fifty Pioneers of Modern Photography. Studio Book. 1st ed. New York: The Metropolitan Museum of Art, 1978. no. 140.