Multipole effects in the photoionization processes of Mg isoelectronic series with Z = 12–22Long Jiang, Gang Jiang, Hsin-Chang Chi and Keh-Ning HuangEur. Phys. J. D, 72 1 (2018) 23DOI: https://doi.org/10.1140/epjd/e2017-80652-1