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<response><item key="0"><nothing>Charles A. Downing, Mikhail Portnoi, "Zero&#x2010;Energy Vortices in Dirac Materials", Physica Status Solidi (B): Basic Research, vol. 256, pp. 1800584, 2019, [DOI: 10.1002/pssb.201800584] [IF: 1.45, SJR: 0.52]</nothing></item></response>
