Hummadi, Sallama Sadiq, et al. “Calculate Energy Levels, Energy Ratios and Electric Quadrupole Transition Probability B(E2), of the Even-Even Yb-164 Isotopes Using IBM-1”. Al-Mustansiriyah Journal of Science, vol. 31, no. 1, Mar. 2020, pp. 71-75, https://doi.org/10.23851/mjs.v31i1.606.