Nuga, Oluwole, G. N. Amahia, and Fatai Salami. “Optimal Designs For the Restricted Maximum Likelihood Estimators in a Random Split-Plot Model”. Lithuanian Journal of Statistics 56, no. 1 (December 20, 2017): 64–71. Accessed July 1, 2024. https://www.journals.vu.lt/statisticsjournal/article/view/13672.