@book{222091,
	author = {Echeverría, Javier.},
	title = {Knowledge communities},
	publisher = {Center for Basque Studies, University of Nevada, Reno},
	year = {c2011.},
	series = {Conference papers series},
	address = {Reno, Nev.},
	edition = {1st ed.},
	note = {Conference proceedings.}
}