E. H. N. Gashti and  M. Malaska and  K. Kujala,  Structural Behaviour of Concrete Energy Piles in Thermal Loadings.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2014, vol. 96(12). 1248 - 1252
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/9999936.