Orod Zarrin and  Mohsen Ramezan Shirazi,  Roller Compacting Concrete “RCC” in Dams.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2015, vol. 98(2). 194 - 198
    [viewed 21 October 2019]. Available from: https://publications.waset.org/pdf/10001423.