Klara Krizova and  Rudolf Hela,  Approach to Design of Composition of Current Concrete with Respect to Strength and Static Elasticity Modulus.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2011, vol. 58(10). 422 - 424
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/3173.