Silva, D. P., J. Moisan-De Serres, D. R. Souza, S. B. Hilgert-Moreira, M. Z. Fernandes, P. G. Kevan, and B. M. Freitas. “Efficiency in Pollen Foraging by Honey Bees: Time, Motion and Pollen Depletion on Flowers of Sisyrinchium Palmifolium Linnaeus (Asparagales: Iridaceae)”. Journal of Pollination Ecology, vol. 11, Oct. 2013, pp. 27-32, doi:10.26786/1920-7603(2013)8.