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Huang, S. C.; Yen, G. C.; Chang, L. W.; Yen, W. J.; Duh, P. D. (2003). „Identification of an Antioxidant, Ethyl Protocatechuate, in Peanut Seed Testa”. Journal of Agricultural and Food Chemistry. 51 (8): 2380—2383. PMID12670184. doi:10.1021/jf0210019.
Baderschneider, B.; Winterhalter, P. (2001). „Isolation and Characterization of Novel Benzoates, Cinnamates, Flavonoids, and Lignans from Riesling Wine and Screening for Antioxidant Activity”. Journal of Agricultural and Food Chemistry. 49 (6): 2788—2798. PMID11409967. doi:10.1021/jf010396d.
Wang, J.; Buss, J. L.; Chen, G.; Ponka, P.; Pantopoulos, K. (2002). „The prolyl 4-hydroxylase inhibitor ethyl-3,4-dihydroxybenzoate generates effective iron deficiency in cultured cells”. FEBS Letters. 529 (2–3): 309—312. PMID12372619. doi:10.1016/S0014-5793(02)03389-6.
Philipp, S.; Cui, L.; Ludolph, B.; Kelm, M.; Schulz, R.; Cohen, M. V.; Downey, J. M. (2005). „Desferoxamine and ethyl-3,4-dihydroxybenzoate protect myocardium by activating NOS and generating mitochondrial ROS”. AJP: Heart and Circulatory Physiology. 290 (1): H450—H457. PMID16155105. doi:10.1152/ajpheart.00472.2005.