Héthelyi, E., Dânos, B., Tétényi, P., and Koczka, I. 1986. GC/MS analysis of essential oils of some Tagetes species. In: Progress in Essential Oil Research, eds. Brunke, E.J. W. de Gruyter, Berlin, Germany. 1:131-137. |
|
Machado, M.I.L., Silva, M.G.V., Matos, F.J.A., Craveiro, A.A., and Alencar, J.W. 1994. The presence of indole as minor constituent of Tagetes erecta leaf oil. J. Essent. Oil Res. 6(2):203-205. |
|