A sufficient condition for an incomplete split-block design to be universally optimal is given. Optimal properties are examined under two linear models, i.e., with interaction effects and without these effects. Furthermore, some methods of constructing universally optimal incomplete split-block designs are presented. © 2002 Elsevier Science B.V. All rights reserved.
Ozawa, K., Jimbo, M., Kageyama, S., & Mejza, S. (2002). Optimality and constructions of incomplete split-block designs. Journal of Statistical Planning and Inference, 106(1–2), 135–157. https://doi.org/10.1016/S0378-3758(02)00209-4