@inbook {1858,
	title = {The GRE computer adaptive test: Operational issues},
	year = {2000},
	address = {W. J. van der Linden and C. A. W. Glas (Eds.), Computerized adaptive testing: Theory and practice (pp. 75-99). Dordrecht, Netherlands: Kluwer.},
	author = {Mills, C. N. and Steffen, M.}
}
