Boggs, Jean S., Portraits by Degas, Berkeley: University of California Press, 1962, pgs. 2-3, pl. 95 (as by Degas).
Coe, Ralph T., “Degas: The Environmental Portrait,” Art News, 61, no. 9 (January 1963), repr. pg. 37 (as by Degas).
Shapiro, Michael, "Degas and the siamese twins of the Café-Concert: the Ambassadeurs and the Alcazar d'été," Gazette des Beaux-Arts 95, no. 1335 (1980), pg. 155 (as by Degas).
Varnedoe, Kirk, “The Ideology of the Time: Degas and Photography,” Art in America 68, no. 6 (Summer 1980), pg. 97, fig. 1 (as by Degas).
Lassaigne, Jaques, and Fiorella Minervino, Tout l’oeuvre peint de Degas, Paris: Flammarion, 1974, no. 414 bis (as by Degas).
Brame, Philippe, and Theodore Reff, Degas et son oeuvre: A Supplement, New York and London: Garland Publishing, 1984, pgs. 76, no. 71, 77, repr. (as by Degas).
Thomson, Richard, “Degas Literature: The Class of 1984” [Review], Master Drawings 23/24, no. 4 (1985), pg. 561 (attributed to Tissot).
Thomson, Richard, “Edgar Degas. Life and Work” [Review], The Burlington Magazine 130, no. 1020 (1988), pg. 239 (attributed to Tissot).
Herbert, Robert L., Impressionism: Art, Leisure, and Parisian Society, New Haven and London: Yale University Press, 1988, pgs. 82, fig. 81, 83 (as by Degas).
Varnedoe, Kirk, A Fine Disregard: What Makes Modern Art Modern, New York: Harry N. Abrams, 1990, pgs. 116, fig. 112, 282 (as by Degas).
Baumann, Felix, and Marianne Karabelnik, eds., Degas Portraits, exh. cat., London: Merrell Holberton, 1994, pg. 132, no. 133, repr. (as by Degas).
Bezzola, Tobia, “Portraits and Genre,” in Degas Portraits, exh. cat., eds. Felix Baumann and Marianne Karabelnik London: Merrell Holberton, 1994, pg. 285, repr. (as by Degas).
Kleiner, Sarah, “Tissot’s Painting Techniques,” in Tissot: Fashion & Faith, exh. cat., ed. Melissa Buron, San Francisco: Fine Arts Museums of San Francisco, pg. 243, fig. 101 (as by Tissot).
Callen, Anthea, “The Impresario: Degas ‒ Or Tissot?,” Fine Arts Museums of San Francisco, September 25, 2019: https://www.famsf.org/stories/the-impresario-degas-or-tissot (as by Tissot).