@inbook {620,
	title = {Compositae - Liabeae},
	booktitle = {Flora of Ecuador},
	volume = {8},
	year = {1978},
	pages = {1-62},
	author = {H. Robinson},
	editor = {Harling, G. and B. Sparre}
}
@article {681,
	title = {Reproductive behavior of plants in time},
	journal = {American Naturalist},
	volume = {112},
	year = {1978},
	pages = {636-639},
	author = {Zeide, B.}
}
