Maryam Momeni Feili and Mahvash Zandy Navgaran, Calculation of Wave Function at the Origin (WFO) for the Ground State of Doubly Heavy Mesons Based On the Variational Method. journal = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology. September 2011, vol. 57(9). 1465 - 1468 [viewed 21 September 2024]. Available from: https://publications.waset.org/pdf/1173.