@conference {904,
	title = {To stratify or not: An investigation of CAT item selection procedures under practical constraints},
	booktitle = {Paper presented at the Annual meeting of the National Council on Measurement in Education},
	year = {2003},
	note = {{PDF file, 186 KB}},
	address = {Chicago IL},
	author = {Deng, H. and Ansley, T.}
}
