Saavedra, L.; Garcia, A.; Barbas, C. Development and validation of a capillary electrophoresis method for direct measurement of isocitric, citric, tartaric and malic acids as adulteration markers in orange juice. Journal of Chromatography A. 9 June 2000, 881 (1–2): 395–401. PMID 10905722. doi:10.1016/s0021-9673(00)00258-2.
Saavedra, L.; Garcia, A.; Barbas, C. Development and validation of a capillary electrophoresis method for direct measurement of isocitric, citric, tartaric and malic acids as adulteration markers in orange juice. Journal of Chromatography A. 9 June 2000, 881 (1–2): 395–401. PMID 10905722. doi:10.1016/s0021-9673(00)00258-2.