Accurate calculations of the 18 Λ-S states and 50 Ω states of PO+ cation: potential energy curves and spectroscopic parameters including the spin-orbit coupling effectZunlue Zhu, Chuncai Cheng, Shuai Wang and Deheng ShiEur. Phys. J. D, 68 10 (2014) 291DOI: https://doi.org/10.1140/epjd/e2014-50221-5