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\bibitem{VanPottelberge2020} {\textquotedblleft}\textit{Comment on {\textquotedblleft}Electron states for gapped pseudospin-1 fermions in the field of a charged impurity{\textquotedblright}}{\textquotedblright}. Van Pottelberge R, Physical Review B \textbf{101}, 197102 (2020).   http://doi.org/10.1103/PHYSREVB.101.197102

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