Two-step Estimation for Longitudinal Data When the Working Correlation Matrix is a Linear Combination of Some Known Matrices

Yu-ling LI, Wei GAO, Man-Lai TANG, Shu-rong ZHENG

Acta Mathematicae Applicatae Sinica(English Series) . 2019, (2): 264 -273 . DOI: 10.1007/s10255-019-0809-7