@article {43538,
	title = {The Alberta GPI accounts : ecological footprint},
	volume = {Report $\#$ 28},
	year = {2001},
	institution = {Pembina Institute},
	address = {Drayton Valley, AB},
	url = {http://pubs.pembina.org/reports/28_ecological_footprint.pdf},
	author = {Wilson, Jeffrey}
}
