Gemechu, Dibaba Bayisa, et al. “A- and D-Optimal Row-Column Designs for Two-Colour CDNA Microarray Experiments Using Linear Mixed Effects Models”. South African Statistical Journal, vol. 49, no. 2, Sept. 2015, pp. 153-68, https://ngtt.journals.ac.za/index.php/sasj/article/view/5633.