@book{205456,
	author = {Rasch, Dieter. and Kubinger, Klaus D.,},
	title = {Statistics in psychology using R and SPSS /},
	publisher = {John Wiley & Sons,},
	year = {2011.},
	address = {Chichester, West Sussex, UK :},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9781119979630}
}