K. Krizova and  R. Hela and  S. Keprdova,  Development of Elasticity Modulus in Time for Concrete Containing Mineral Admixtures.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 81(9). 690 - 692
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/9997275.