On Estimating Linear Relationships When Both Variables Are Subject to Heteroscedastic Measurement Errors. - Chi-Lun Cheng; Jordi Riu (Technometrics, 2006)

Total Least Squares and Errors-in-variables Modeling. - Sabine Van Huffel; Chi-Lun Cheng; Nicola Mastronardi; Chris Paige; Alexander Kukush (Comput. Stat. Data Anal., 2007)