Verissimo, Mario Alvaro Aloisio, Sergio Delmar dos Anjos e Silva, Diego Stähelin, Pedro Patric Pinho Morais, Jefferson Luis Meirelles Coimbra, and Altamir Frederico Guidolin. 2009. “Grain Yield of Castor Bean Genotypes at Tree Sowing Dates, in the Santa Catarina State Plateau”. Revista De Ciências Agroveterinárias 8 (2). Lages:129-38. https://revistas.udesc.br/index.php/agroveterinaria/article/view/5320.