WASET
    Shih-Ching Lo and  Yu-Ping Liao,  External Effects on Dynamic Competitive Model of Domestic Airline and High Speed Rail.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2012, vol. 67(7). 1724 - 1728
    [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/14550.