Diriken J, Patronis N, Andreyev AN, Antalic S, Bildstein V, Blazhev A, Darby IG, Witte DH, Eberth J, Elseviers J, et al. Study of the deformation-driving orbital in $^{67}_{28}$Ni$_{39}$ using one-neutron transfer reactions. Phys. Lett. B. 2014;736:533?538.