William James, The Varieties of Religious Experience : A Study in Human Nature, Longmans Green & Co, , 284 p. (ISBN978-1-4392-9727-8, lire en ligne), p. 94
Georgiana D. Hedesan, « Paracelsian Medicine and Theory of Generation in ‘Exterior homo’, a Manuscript Probably Authored by Jan Baptist Van Helmont (1579–1644), ref 52 », Medical History, vol. 58, no 03, , p. 375–96 (PMID25045180, PMCID4103403, DOI10.1017/mdh.2014.29)
(en) Delia Georgiana Hedesan, ‘Christian Philosophy’ : Medical Alchemy andChristian Thought in the Work of Jan Baptista VanHelmont (1579-1644), (lire en ligne), p. 31.
Georgiana D. Hedesan, « Paracelsian Medicine and Theory of Generation in ‘Exterior homo’, a Manuscript Probably Authored by Jan Baptist Van Helmont (1579–1644), ref 52 », Medical History, vol. 58, no 03, , p. 375–96 (PMID25045180, PMCID4103403, DOI10.1017/mdh.2014.29)