@mastersthesis {33192,
	title = {Selection of optimal forest harvesting systems using shortest path network analysis},
	volume = {Agricultural Engineering},
	year = {1981},
	pages = {186},
	address = {University of Alberta},
	isbn = {0315059982, 9780315059986},
	url = {http://search.proquest.com/docview/303211598},
	author = {Garner, George John}
}
