TY  - BOOK
AU  - Davier, Matthias
AU  - Carstensen, Claus H
TI  - Multivariate and Mixture Distribution Rasch Models [electronic resource]
SN  - 9780387498393
U1  - 150.15195 
PY  - 2007///
CY  - New York
PB  - Springer
N1  - http://dx.doi.org/10.1007/978-0-387-49839-3
ER  -