(en) David M. Damkaer, The Copepodologist's Cabinet : A Biographical and Bibliographical History, Volume One : Aristotle to Alexander von Nordmann (330 B.C. to A.D. 1832), Memoirs of the American Philosophical Society held at Philadelphia for promoting useful knowledge (ISSN0065-9738), Vol.240, American Philosophical Society, Philadelphia, Pensylvania, 2002, p. 112-113. (ISBN0-87169-240-6)