Cárdenas-Calle, S., J. D. Cardenas, B. O. Landázuri, G. Mogrovejo, A. M. Crespo, N. Breitbach, M. Schleuning, and B. A. Tinoco. “Pollinator Effectiveness in the Mixed-Pollination System of a Neotropical Proteaceae, Oreocallis Grandiflora”. Journal of Pollination Ecology, vol. 26, Jan. 2021, doi:10.26786/1920-7603(2020)601.