Abojassem, Abid, Ibtisam J. A. Fatlawi, and Faeq. A .AL-Tememe. 2012. “Calculation of the Energy Levels, the Square of Rotational Energy and The Moment of Inertia of 170-176 Yb Isotopes by the Interacting Boson Model-1”. Journal of Kufa-Physics 4 (1). https://journal.uokufa.edu.iq/index.php/jkp/article/view/7559.