WASET
    Moghadazadeh Zahra and  Towfighi Jafar and  Mofarahi Masoud,  Study of a Four-Bed Pressure Swing Adsorption for Oxygen Separation from Air.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2008, vol. 23(11). 341 - 345
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/15715.