Zegveld, Liesbeth. Accountability of Armed Opposition Groups. p.107.
Christopher R. Browning, "The Two Different Ways of Looking at Nazi Murder" (review of Philippe Sands, East West Street: On the Origins of "Genocide" and "Crimes Against Humanity", Knopf, 425 pp. and Christian Gerlach, The Extermination of the European Jews, Cambridge University Press, 508 pp., The New York Review of Books, vol. LXIII, no. 18 (November 24, 2016), pp.56–58. Discusses Hersch Lauterpacht's legal concept of "crimes against humanity", contrasted with Rafael Lemkin's legal concept of "genocide". All genocides are crimes against humanity, but not all crimes against humanity are genocides; genocides require a higher standard of proof, as they entail intent to destroy a particular group.