TY  - RPRT
TI  - The computation and use of the asymptotic covariance matrix for measurement error models 
AU  - Boggs, Paul T
AU  - Donaldson, Janet R
PY  - 1989
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 89-4102
DO  - 10.6028/NIST.IR.89-4102
ER  -