@book {2480,
	title = {Computerized multistage testing: Theory and applications},
	year = {2014},
	publisher = {CRC Press},
	organization = {CRC Press},
	address = {Boca Raton FL},
	isbn = {13-978-1-4665-0577-3},
	author = {Duanli Yan and Alina A von Davier and Charles Lewis}
}
