Amna Noreen  and  Kare Olaussen,  Very-high-Precision Normalized Eigenfunctions for a Class of Schrödinger Type Equations.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2011, vol. 52(4). 628 - 633
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/13881.