WASET
    M. Heikkinen and  A. Sarpola and  H. Hellman and  J. Rämö and  Y. Hiltunen,   Independent Component Analysis to Mass Spectra of Aluminium Sulphate .   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2007, vol. 2(2). 7 - 11
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/3558.