Brilhante, Jean Carlos de Araújo, et al. “Action of Exogenous Ascorbic Acid on Physiological Quality of Cowpea Seeds Artificially Aged”. Semina: Ciências Agrárias, vol. 34, no. 3, June 2013, pp. 985-94, doi:10.5433/1679-0359.2013v34n3p985.