@booklet {1621,
	title = {Controlling item exposure conditional on ability in computerized adaptive testing (Research Report 95-25)},
	year = {1995},
	note = {$\#$ST95-25; also see $\#$ST98057},
	address = {Princeton NJ: Educational Testing Service.},
	author = {Stocking, M. L. and Lewis, C.}
}
