Akanksha Menon and  Nesrin Ozalp,  Optical Analysis of Variable Aperture Mechanism for a Solar Reactor.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2011, vol. 59(11). 2429 - 2433
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/11794.