Manivannan A and  Velmurugan M,  Performance of Single Pass Down Stream Solar Air Collector with Inclined Multiple V-Ribs.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 92(8). 1495 - 1500
    [viewed 15 November 2019]. Available from: https://publications.waset.org/pdf/10000200.