Herrera, Magaly, Yolaine Medina, Walkiria Guerra, Lucía Sarduy, Yoleisy García Hernández, Verena Torres, and L. M. Fraga. 2018. “Comparison of Mixed and Fixed Effects in the Analysis of a Split Plot Design in an Experiment With Guinea Mombaza (Megathyrsus Maximus Cv. Mombaza)”. Cuban Journal of Agricultural Science 51 (3). https://www.cjascience.com/index.php/CJAS/article/view/758.