@book{24997,
	author = {Cavanagh, Robert F.,},
	title = {Applications of Rasch Measurement in Learning Environments Research /},
	publisher = {Brill | Sense,},
	year = {2011.},
	series = {Advances in Learning Environments Research ;},
	address = {Leiden; },
	url = {http://dx.doi.org/10.1007/978-94-6091-493-5}
}