Year	2001
Authors	Henry Horng-Shing Lu ,Huang, S.-Y., and Lu, H. H.-S.
Paper Title	Extended Gauss-Markov Theorem for Nonparametric Mixed-Effects Models.
Journal Title	Journal of Multivariate Analysis, 76, 2, 249-266.
Reference URL	http://www.sciencedirect.com/science/article/pii/S0047259X00919304