Gerhard Wilke and Kurt Wagner, «Family and Household: Social Structures in a German Village Between the Two World Wars», in Richard J. Evans and William Robert Lee (eds.), The German Family: Essays on the Social History of the Family in Nineteenth- and Twentieth-century Germany (London, 1981), 120-47; Grunberger, A Social History, 200, с цитированием Hans Muller, Deutsches Bauerntum zwischen Gestern und Morgen (Witzburg, 1940), 28.