Jian Yao and  Chengwen Yan,  Evaluation of The Energy Performance of Shading Devices based on Incremental Costs.   journal   = {International Journal of Architectural and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2011, vol. 53(5). 225 - 227
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/9145.