Sorted by most recent date added to the index first, which may not be the same as publication date order.
1990 journal article
Regression and calibration with nonconstant error variance
Chemometrics and Intelligent Laboratory Systems, 9(3), 231–248.
By: M. Davidian & P. Haaland
Estimation of variance functions in assays with possibly unequal replication and nonnormal data
Biometrika, 77(1), 43–54.
By: M. Davidian