TY  - BOOK
AU  - Van der Linden, Wim J  .
TI  - Linear models for optimal test design / 
SN  - 0-387-20272-2
U1  - B28 
PY  - 2005///
CY  - New York : 
PB  - Springer-Verlag , 
KW  - Optimal test design
ER  -