@book{3518,
	author = {Helander, Martin,},
	title = {Handbook of human-computer interaction /},
	publisher = {Elsevier,},
	year = {1997.},
	address = {Amsterdam ;},
	edition = {2nd, completely rev. ed.},
	url = {http://www.aginternetwork.net/whalecomwww.sciencedirect.com/whalecom0/science/book/9780444818621}
}