C. Mendes-Rodrigues, P. Eugênio Oliveira, and M. Aparecida Ranal, “Seed germination and seedling growth of two Pseudobombax species (Malvaceae) with contrasting habitats from Brazilian Cerrado”, Rev. Biol. Trop., vol. 59, no. 4, pp. 1915–1925, Dec. 2011.