@ARTICLE{Graf2017J,
  author = {Daniel Graf},
  title = {{H}ow to {S}ort by {W}alking and {S}wapping on {P}aths and {T}rees},
  journal = {Algorithmica},
  year = {2017},
  volume = {78},
  pages = {1151--1181},
  number = {4},
  month = {Aug},
  publisher = {Springer},
  day = {01},
  doi = {10.1007/s00453-017-0282-8},
  issn = {1432-0541},
  url = {http://dx.doi.org/10.1007/s00453-017-0282-8}
}

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