Caraballo-Ortiz, Marcos A., and Eugenio Santiago-Valentín. “The Breeding System and Effectiveness of Introduced and Native Pollinators of the Endangered Tropical Tree Goetzea Elegans (Solanaceae)”. Journal of Pollination Ecology, vol. 4, May 2011, pp. 26-33, doi:10.26786/1920-7603(2011)5.