Wenzel-Burchard, G. <. (1981). Broken star: The Warburgs of Altona ; their life in Germany and their death in the Holocaust / Gertrud Wenzel (1. ed.). Exposition Press.

Wenzel-Burchard, Gertrud <1906-1994>. Broken Star: The Warburgs of Altona ; Their Life in Germany and Their Death in the Holocaust / Gertrud Wenzel. 1. ed. Smithtown, NY: Exposition Press, 1981.

Wenzel-Burchard, Gertrud <1906-1994>. Broken Star: The Warburgs of Altona ; Their Life in Germany and Their Death in the Holocaust / Gertrud Wenzel. 1. ed. Exposition Press, 1981.