M. Shiva Prasad and  S. R. Atchuta and  T. Vijayaraghavan and  S. Sakthivel,  Cost Efficient Receiver Tube Technology for Eco-Friendly Concentrated Solar Thermal Applications.   journal   = {International Journal of Energy and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2019, vol. 151(7). 510 - 514
    [viewed 15 November 2019]. Available from: https://publications.waset.org/pdf/10010587.