WASET
    M. H. M. Rashid,  Weyl Type Theorem and the Fuglede Property.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2020, vol. 165(9). 107 - 110
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10011450.