Florence Camard, Ruhlmann: Master of Art Deco, New York, 1984, p. 203
Emmanuel Bréon, Jacques-Émile Ruhlmann: The Designer’s Archives, Book one: Furniture, Paris, 2004, p. 119 for a square example
Emmanuel Bréon and Rosalind Pepall, eds., Ruhlmann: Genius of Art Deco, exh. cat., Musée des Années 30, Paris, 2004, p. 314
Florence Camard, Jacques-Émile Ruhlmann, New York, 2011, pp. 320, 363, 428 for a square example