WASET
    Dali Zhang and  Baoqun Yin and  Hongsheng Xi,  A State Aggregation Approach to Singularly Perturbed Markov Reward Processes.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2008, vol. 19(7). 2504 - 2513
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/110.