Lucy Ampaw-Asiedu and  Terri R. Norton ,  The Design of Safe Spaces in Healthcare Facilities Vulnerable to Tornado Impact in Central US.   journal   = {International Journal of Civil and Architectural Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2018, vol. 135(3). 324 - 335
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10008733.