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L. A.  Hummelbrunner and Isman, M. B., ?Acute, sublethal, antifeedant, and synergistic effects of monoterpenoid essential oil compounds on the tobacco cutworm, Spodoptera litura (Lep., Noctuidae)?, in Journal of agricultural and food chemistry, vol. 49; 49, no. 2; 2, 2001, pp. 715 - 720.

A. C.  Figueiredo, Miguel, M. G., Duarte, A. M. F., Barroso, J. G., and Pedro, L. G., ?Essential oil composition of Thymus lotocephallus G. Lo?pez & R. Morales, collected during flowering and vegetative phases?, Flavour and Fragrance Journal, vol. 16, no. 6, pp. 417 - 421, 2001.

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