@inbook {2052, title = {Multidimensional Adaptive Testing with Kullback{\textendash}Leibler Information Item Selection}, booktitle = {Elements of Adaptive Testing}, year = {2010}, pages = {77-102}, chapter = {4}, doi = {10.1007/978-0-387-85461-8}, author = {Mulder, J. and van der Linden, W. J.} }