Ibrahim F. Elbaba and  Paul T. Williams,  Hydrogen from Waste Tyres.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2012, vol. 66(6). 321 - 323
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/1863.