@conference {2222,
	title = {A Bayesian approach in sequential testing},
	booktitle = {American Educational Research Association},
	year = {1974},
	month = {04/1974},
	address = {Chicago IL},
	author = {Hsu, T. and Pingel, K.}
}
@booklet {1378,
	title = {The application of item generators for individualizing mathematics testing and instruction (Report 1971/14)},
	year = {1971},
	address = {Pittsburgh PA: University of Pittsburgh Learning Research and Development Center},
	author = {Ferguson, R. L. and Hsu, T.}
}
