Cabrera, E. R., M. Arriaza, and M. Rodríguez-Entrena. “Is the Extra Virgin Olive Oil Market Facing a Process of Differentiation? A Hedonic Approach to Disentangle the Effect of Quality Attributes”. Grasas Y Aceites, vol. 66, no. 4, Dec. 2015, p. e105, doi:10.3989/gya.0253151.