WASET
    Mahmoud S. Ahmed and  Hany A. Mohamed and  Mohamed A. Omara and  Mohamed F. Abdeen,  Investigation of Heat Transfer by Natural Convection in an Open Channel.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2015, vol. 101(5). 737 - 743
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10001190.