Brancalion, P. H. S., D. Tay, A. D. da L. C. Novembre, R. R. Rodrigues, and J. Marcos Filho. “ Priming of Pioneer Tree Guazuma Ulmifolia (Malvaceae) Seeds Evaluated by an Automated Computer Image Analysis ”. Scientia Agricola, vol. 67, no. 3, Jan. 2010, pp. 274-9, doi:10.1590/S0103-90162010000300004.