Tarunjit S. Butalia and  William E. Wolfe,  Beneficial Use of Coal Combustion By-products in the Rehabilitation of Failed Asphalt Pavements.   journal   = {International Journal of Structural and Construction Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2009, vol. 27(3). 168 - 173
    [viewed 20 April 2021]. Available from: https://publications.waset.org/pdf/491.