WASET
    Wei Lei and  Hui Chen and  Lin Lu,  Microscopic Emission and Fuel Consumption Modeling for Light-duty Vehicles Using Portable Emission Measurement System Data.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2010, vol. 42(6). 495 - 502
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/15892.