Bono, Roser, Jaume Arnau, and Guillermo Vallejo. “Modelling Split-Plot Data and Nonstationary Covariance Structures: A Simulation Study”. Escritos de Psicología - Psychological Writings 3, no. 3 (September 1, 2010): 1–7. Accessed May 19, 2024. https://revistas.uma.es/index.php/espsi/article/view/13341.