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jstor.org
Fudge 2003, p. 322. Fudge, Thomas A. (2003). "Incest and Lust in Luther's Marriage: Theology and Morality in Reformation Polemics". The Sixteenth Century Journal. 34 (2, Marriage in Early Modern Europe (Summer)). Sixteenth Century Journal: 319–345. doi:10.2307/20061412. JSTOR20061412.