@book {13819,
	title = {International Journal of Human Computer Studies},
	series = {Exploring User Experience (UX) in virtual learning environments},
	year = {2012},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84862317953\&partnerID=MN8TOARS},
	author = {Zaharias, P. and Mehlenbacher, B.}
}