Mechanisms, and Implications for the Study of Heredity and Evolution. TheQuarterlyReviewofBiology (Chicago, IL: University of Chicago Press). June 2009,
doi:10.2307/2806659. Levin, Donald A. The Role of Trichomes in Plant Defense. TheQuarterlyReviewofBiology. 1973, 48 (1): 3–15. ISSN 0033-5770. JSTOR 2822621