@article {120,
	title = {Inventory of information sources on chemicals Persistent Organic Pollutants},
	year = {1999},
	pages = {141pp},
	institution = {United Nations Environment Programme},
	author = {UNEP}
}
@conference {40,
	title = {Environmental effects of ozone depletion: 1998 assessment},
	booktitle = {UNEP},
	year = {1998},
	address = {Nairobi},
	url = {http://www.gcrio.org/ozone/toc.html},
	author = {UNEP}
}
