Machado, Carla Gomes, et al. “Quality of Castor Bean Seeds (Ricinus Communis l.) Affected by Raceme and Fruit Position During Storage”. Semina: Ciências Agrárias, vol. 31, no. 2, July 2010, pp. 301-12, doi:10.5433/1679-0359.2010v31n2p301.