Guil-Guerrero, J. L., P. Campra-Madrid, and R. Navarro-Juárez. “Isolation of Some PUFA from Edible Oils by Argentated Silica Gel Chromatography”. Grasas Y Aceites, vol. 54, no. 2, June 2003, pp. 116-21, doi:10.3989/gya.2003.v54.i2.253.