J. H. Zhou and  C. S. Cheung and  C. W. Leung,  Combustion and Emission of a Compression Ignition Engine Fueled with Diesel and Hydrogen-Methane Mixture.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2013, vol. 80(8). 1653 - 1658
    [viewed 18 October 2019]. Available from: https://publications.waset.org/pdf/16081.