@conference {1285,
	title = {Identifying practical indices for enhancing item pool security},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education (NCME)},
	year = {2005},
	address = {Montreal, Canada},
	author = {Yi, Q. and Zhang, J. and Chang, Hua-Hua}
}
@conference {875,
	title = {Identify the lower bounds for item sharing and item pooling in computerized adaptive testing},
	booktitle = {Paper presented at the annual meeting of the American Educational Research Association},
	year = {2002},
	address = {New Orleans LA},
	author = {Chang, Hua-Hua and Zhang, J.}
}
