@misc{indiciae9da01ef57728,
  title = {Strong Levinson theorem for the Dirac equation.},
  author = {Alex Calogeracos and Norman Dombey},
  year = {2004},
  doi = {10.1103/physrevlett.93.180405},
  url = {https://pubmed.ncbi.nlm.nih.gov/15525138/},
  note = {Source identifier: 15525138}
}