論文（英文）
A simulation study for a linear measurement error model when error variances vary between measurements. Journal of Agricultural, Biological, and Environmental Statistics.
Chiba Y, Matsuyama Y, Sato T, and Yoshimura I. A simulation study for a linear measurement error model when error variances vary between measurements. Journal of Agricultural, Biological, and Environmental Statistics. 2005; 10: 118-130.