« Jacob Henle. Well-known teacher of Koch and progenitor of his Postulates. » (William C. Campbell, Ph.D., Hall of Sciences (Biol./RISE), Drew University, Madison, NJ 07940, Germ Theory Calendar, en ligne, qui renvoie à Garrison, F. H., History of Medicine, 4e éd., W. B. Saunders Co., Philadelphia, 1929 et à Norman, J. M. (dir), Morton’s Medical Bibliography, 5e éd., Scholar Press, Aldershot, 1991, p. 1243.
