@inbook {1789,
	title = {A gradual maximum information ratio approach to item selection in computerized adaptive testing},
	year = {2009},
	note = {{PDF file, 391 KB}},
	address = {D. J. Weiss (Ed.), Proceedings of the 2009 GMAC Conference on Computerized Adaptive Testing.},
	author = {Han, K. T.}
}
