Souza, Apolyana Lorrayne, et al. “Overcome Dormancy of Seeds of Tucum (Astrocaryum Huaimi Mart.)”. Semina: Ciências Agrárias, vol. 35, no. 2, Apr. 2014, pp. 749-58, doi:10.5433/1679-0359.2014v35n2p749.