@article {Powell:April 2000:0006-3207:35,
	author = "Powell G.V.N.",
	author = "Barborak J.",
	author = "Rodriguez S M.",
	title = "Assessing representativeness of protected natural areas in Costa Rica for conserving biodiversity - a preliminary gap analysis",
	journal = "Biological Conservation",
	volume = "93",
	year = "April 2000",
	abstract = "",
	pages = "35-41(7)",
	url = "http://www.ingentaconnect.com/content/els/00063207/2000/00000093/00000001/art00115"
	doi = "doi:10.1016/S0006-3207(99)00115-9"
}