F. Halek and  A. Kavousi and  M. Banifatemi,  Biodiesel as an Alternative Fuel for Diesel Engines.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2009, vol. 33(9). 521 - 523
    [viewed 26 January 2020]. Available from: https://publications.waset.org/pdf/8411.