Robustified Maximum Likelihood Estimation in Generalized Partial Linear Mixed Model for Longitudinal Data

Robust estimating equations and bias correction of correlation parameters for longitudinal data

Qin, Guo You, (2008)

Generalized estimating equations for variance and covariance parameters in regression credibility models

Lo, Chi Ho, (2006)

Penalized quadratic inference functions for single-index models with longitudinal data

Bai, Yang, (2009)