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Elliott WJ, Sprecher H, Needleman P (1985). "Physiologic effects of columbinic acid and its metabolites on rat skin". Biochim. Biophys. Acta835 (1): 158–60. PMID3924106. doi:10.1016/0005-2760(85)90043-8.
Tanaka T, Hattori T, Kouchi M, Hirano K, Satouchi K (1998). "Methylene-interrupted double bond in polyunsaturated fatty acid is an essential structure for metabolism by the fatty acid chain elongation system of rat liver". Biochim. Biophys. Acta1393 (2–3): 299–306. PMID9748638. doi:10.1016/s0005-2760(98)00084-8.
Elliott WJ, Sprecher H, Needleman P (1985). "Physiologic effects of columbinic acid and its metabolites on rat skin". Biochim. Biophys. Acta835 (1): 158–60. PMID3924106. doi:10.1016/0005-2760(85)90043-8.