1. Otten CF: A Lycanthropy Reader: Werewolves in Western Culture. 1986; Syracuse, Syracuse University Press.
2. Arbiter TP: The Satyricon of Petronius (trans. 1694, William Burnaby). 1910; London, Norman Lindsay.
3. Thorpe B (ed): Ancient Laws and Institutes of England. 1840, London, pp. 160–161.
4. St. Augustine: De Spiritu et Anima, ch. 26; De Civitate Dei, lib. 18, ch. 17.
5. Adams F (ed.): The Seven Books of Paulus Aegineta. 1847, London, Vol. III, Sec. XVI.