@conference {1094,
	title = {Calibrating CAT pools and online pretest items using marginal maximum likelihood methods},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {2003},
	note = {{PDF file, 284 KB}},
	address = {Chicago IL},
	author = {Pommerich, M and Segall, D. O.}
}
