A. D. Parekh and  P. R. Tailor,  Thermodynamic Analysis of R507A-R23 Cascade Refrigeration System.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2011, vol. 57(9). 1912 - 1916
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/1251.