@article {27467,
	title = {Test of contour accuracy on a photogrammetric map of Athabasca Glacier},
	volume = {3},
	year = {1966},
	pages = {909-915},
	publisher = {Canadian Journal of Earth Sciences},
	url = {http://article.pubs.nrc-cnrc.gc.ca/RPAS/RPViewDoc?_handler_=HandleInitialGet\&calyLang=eng\&journal=cjes\&volume=3\&articleFile=e66-074.pdf},
	author = {Paterson, W. S. B.}
}
