Wavelengths and Energy Levels of the Upper Levels of Singly Ionized Nickel (Ni ii) from 3d 8(3 F)5f to 3d 8(3 F)9s - Clear,CP; Pickering,JC; Nave,G; Uylings,P; Raassen,T (ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2023)