WASET
    Qiangqiang Xu and  Xu Ji and  Jingyang Han and  Changchun Yang and  Ming Li,  Experimental Study on a Solar Heat Concentrating Steam Generator.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2018, vol. 136(4). 281 - 285
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10008819.