Indirect contributions to electron-impact ionization of ${Li}^{+}$ ($1s2s\phantom{\rule{0.28em}{0ex}}^{3}S_{1}$) ions: Role of intermediate double-$K$-vacancy states - A. Müller, A. Borovik, Jr., K. Huber, S. Schippers, D. V. Fursa, and I. Bray (American Physical Society (APS), 2018)
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Keywords: U