M. C. M. da Silva and L. Bauer, “Jacaranda micrantha Cham.: isolation and identification of 1-hidroxy-4-oxo-2,5-ciclohexadien-1-ethylacetate. antitumor, antibacterial and antifungal analysis”, CeN, vol. 5, no. 5, pp. 07–18, Dec. 1983.