WASET
    Jinghao Sun and  Guozhen Tan and  Guangjian Hou,  A New Integer Programming Formulation for the Chinese Postman Problem with Time Dependent Travel Times.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2011, vol. 52(4). 410 - 414
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/9764.