@inbook {1791,
	title = {Reflections on adaptive testing},
	year = {1976},
	note = {{PDF file, 464 KB}},
	address = {C. K. Clark (Ed.), Proceedings of the First Conference on Computerized Adaptive Testing (pp. 90-94). Washington DC: U.S. Government Printing Office.},
	author = {Hansen, D. N.}
}
