1. Pigments Present in Virgin Olive Oil;Mmguez-Mosquera;J. Am. Oil Chem. Soc.,1990
2. Color-Pig-ment Correlation in Virgin Olive Oil;Minguez-Mosquera;Ibid.,1991
3. Rapid Method to Define and Classify the Color of Virgin Olive Oil;Gutierrez-G. Quijano;Grasas Aceites,1986