@conference {829,
	title = {Constructing rotating item pools for constrained adaptive testing},
	booktitle = {Paper presented at the Annual meeting of the National Council on Measurement in Education},
	year = {2003},
	note = {{PDF file, 395 KB}},
	address = {Chicago IL},
	author = {Ariel, A. and Veldkamp, B. and van der Linden, W. J.}
}
