E. Vejmelková and  M. Ondráček and  R. Černý,  Mechanical and Hydric Properties of High- Performance Concrete Containing Natural Zeolites.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2012, vol. 63(3). 186 - 189
    [viewed 10 May 2024]. Available from: https://publications.waset.org/pdf/14098.