WASET
    Nam Lethanh and  Bryan T. Adey,  A Hidden Markov Model for Modeling Pavement Deterioration under Incomplete Monitoring Data.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2012, vol. 61(1). 1 - 8
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/14190.