Gonçalves, M. Helena, M. Salomé Cabral, and Adelchi Azzalini. “The R Package Bild for the Analysis of Binary Longitudinal Data”. Journal of Statistical Software 46, no. 9 (February 6, 2012): 1–17. Accessed April 20, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v046i09.