Barton, Nicholas H. “Differentiation.”10.1016/b978-0-12-384719-5.00031-9__Encyclopedia of Biodiversity, 2nd ed., Elsevier, 2013, pp. 508–15, doi:10.1016/b978-0-12-384719-5.00031-9.
LibreCat: https://research-explorer.ista.ac.at/record/10899
DOI: 10.1016/b978-0-12-384719-5.00031-9