WASET
    Weiwei Shan and  Wenjing Ding and  Juan Ning and  Chao He and  Zijuan Wang,  Study on Liquid Nitrogen Gravity Circulation Loop for Cryopumps in Large Space Simulator .   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2017, vol. 129(9). 1612 - 1617
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10008017.