@article {1147,
	title = {Constraints on chemical coevolution: wild parsnips and the parsnip webworm},
	journal = {Evolution},
	volume = {40},
	year = {1986},
	month = {1986///},
	pages = {1215 - 1228},
	author = {Berenbaum,M.R. and Zangerl,A.R. and Nitao,J.K.}
}
