(en) Geoffrey P. Megargee, « Introduction to the early camps », The United States Holocaust Memorial Museum Encyclopedia of Camps and Ghettos, 1933-1945 - Early Camps, Youth Camps, and Concentration Camps and Subcamps under the SS-Business Administration Main Office (WVHA) - Indiana University Press, 2009, vol. I, 2009. (lire en ligne [PDF])
(en) Geoffrey P. Megargee, « The Genesis and Structure of the National Socialist Concentration Camps », dans The United States Holocaust Memorial Museum, Encyclopedia of Camps and Ghettos, 1933-1945, Volume I: Early Camps, Youth Camps, and Concentration Camps and Subcamps under the SS-Business Administration Main Office (WVHA), Indiana University Press, (lire en ligne)
