Mean-field plus quadrupole–quadrupole and pairing model in the ds-shell Feng Pan, Yingwen He, Aoxue Li, Yingxin Wu, Dan Zhou and Jerry P. Draayer Eur. Phys. J. Plus, 136 6 (2021) 689 Published online: 24 June 2021 DOI: 10.1140/epjp/s13360-021-01668-6