@article {8620,
	title = {Lunaria},
	volume = {1},
	year = {1993},
	month = {1993///},
	author = {P.W. Ball}
}
@article {8618,
	title = {Ornithopus},
	volume = {2},
	year = {1968},
	month = {1968///},
	author = {P.W. Ball}
}
@article {8619,
	title = {Bunias},
	volume = {1},
	year = {1993},
	month = {1993///},
	author = {P.W. Ball}
}
@inbook {7754,
	title = {Carex},
	booktitle = {Flora of North America},
	volume = {23},
	year = {2002},
	month = {2002///},
	pages = {254 - 572},
	publisher = {Oxford University Press},
	organization = {Oxford University Press},
	author = {P.W. Ball and A.A. Reznicek}
}
