@book{6428,
	author = {Di Gregorio, Silvana. and Davidson, Judith. and ebrary, Inc.},
	title = {Qualitative research design for software users},
	publisher = {Open University Press,},
	year = {c2008.},
	address = {Maidenhead, Berkshire, Eng. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10273869}
}