Noorian, S., and M. Ganjali. “Bayesian Analysis of Transition Model for Longitudinal Ordinal Response Data: Application to Insomnia Data”. International Journal of Statistics in Medical Research 1, no. 2 (December 20, 2012): 148–161. Accessed May 17, 2024. https://lifescienceglobal.com/pms/index.php/ijsmr/article/view/686.