@article {42998,
	title = {A new method for characterizing point patterns in plant ecology},
	volume = {12},
	year = {2001},
	pages = {597-608},
	publisher = {Journal of Vegetation Science},
	url = {http://www.bioone.org/archive/1100-9233/13/4/pdf/i1100-9233-13-4-535.pdf},
	author = {Dale, M. R. T. and Powell, R. D.}
}
