@article {8241,
	title = {The spread of Catalpa ovata G..Don in western Massachusetts and its biogeographic implications},
	journal = {Rhodora},
	volume = {90},
	year = {1988},
	month = {1988///},
	pages = {461 - 464},
	author = {C.J. Burk and N.D. McMaster}
}
