Op reis en aan tafel met Katherina van KleefRuud Priem, Bert Thissen · First published 2009Open the Tome
Computerized Adaptive TestingHoward Wainer, Neil J. Dorans, Ronald Flaugher, Bert F. Green, Robert J. Mislevy, Lynne Steinberg, David Thissen · First published 2000Open the Tome
