Fernández-Alonso, J.L. et al. 2017. Redescription of the pink zapotillo of Perú, Phragmotheca sidereotricha Fern. Alonso (Malvaceae), and notes on its habitat and distribution. Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales. 41, 160 (Oct. 2017), 319–325. DOI:https://doi.org/10.18257/raccefyn.498.