@booklet {1409,
	title = {Estimating item parameters from classical indices for item pool development with a computerized classification test (Research Report 2000-4)},
	year = {2000},
	address = {Iowa City IA: ACT Inc},
	author = {Huang, C.-Y. and Kalohn, J.C. and Lin, C.-J. and Spray, J.}
}
@article {205,
	title = {Estimating Item Parameters from Classical Indices for Item Pool Development with a Computerized Classification Test. },
	number = {Research Report 2000-4},
	year = {2000},
	institution = {ACT, Inc.},
	address = {Iowa City, Iowa},
	author = {Huang, C.-Y. and Kalohn, J.C. and Lin, C.-J. and Spray, J. A.}
}
@booklet {1606,
	title = {Unidimensional approximations for a computerized adaptive test when the item pool and latent space are multidimensional (Research Report 97-5)},
	year = {1997},
	address = {Iowa City IA: ACT Inc},
	author = {Spray, J. A. and Abdel-Fattah, A. A. and Huang, C.-Y. and Lau, CA}
}
