WASET
    Kui Du,  The Ratios between the Spectral Norm, the Numerical Radius and the Spectral Radius.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2010, vol. 44(8). 1113 - 1116
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/11448.