Michalke, M. (2013). rk.FactorAnalysis: RKWard GUI to conduct principal component and factor analysis (Version 0.01-11). Available from http://rkward.sf.net

			@Manual{,
						title = {rk.FactorAnalysis: RKWard GUI to conduct principal component and factor analysis},
						author = {Meik Michalke},
						year = {2013},
						note = {(Version 0.01-11)},
						url = {http://rkward.sf.net},
					}