Candeia, Brígida Lima, Olaf Andreas Bakke, Éder F. Ariel, and Ivonete A. Bakke. 2010. “Production of Thornless Cnidoscolus Phyllacanthus Pax. et K. Hoffm. Progenies from Open Pollinated Native Trees”. Pesquisa Florestal Brasileira 30 (62): 147. https://pfb.sede.embrapa.br/pfb/article/view/171.