WASET
    Tokuei Sako and  Paul-Antoine Hervieux,  Energy-Level Structure of a Confined Electron-Positron Pair in Nanostructure.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 86(2). 306 - 309
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/9997459.