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Kite GC, Cardoso D, Lewis GP, Zartman CE, de Queiroz LP, Veitch NC (2015). "Monomethyl ethers of 4,5-dihydroxypipecolic acid from Petaladenium urceoliferum: Enigmatic chemistry of an enigmatic legume". Phytochemistry. 116: 198–202. Bibcode:2015PChem.116..198K. doi:10.1016/j.phytochem.2015.02.026. PMID25817832.
ildis.org
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