@conference {1001,
	title = {Integrating stratification and information approaches for multiple constrained CAT},
	booktitle = {Paper presented at the Annual Meeting of the National Council on Measurement in Education},
	year = {2001},
	note = {{PDF file, 322 KB}},
	address = {Seattle WA},
	author = {Leung, C.-I. and Chang, Hua-Hua and Hau, K-T.}
}
