WASET
    S. Aouabdi and  M. Taibi,  Sensor Monitoring of the Concentrations of Different Gases Present in Synthesis of Ammonia Based On Multi-Scale Entropy and Multivariate Statistics.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2015, vol. 98(2). 169 - 172
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10001353.