@book {2048,
	title = {Elements of Adaptive Testing},
	year = {2010},
	pages = {437},
	publisher = {Springer},
	organization = {Springer},
	address = {New York},
	doi = {10.1007/978-0-387-85461-8},
	author = {van der Linden, W. J. and Glas, C. A. W.}
}
