@techreport{EhrgottFeldmann2017,
  author    = {Matthias Ehrgott and Alexander Feldmann},
  title     = {A Note on Approximation Algorithms for the Multicriteria \(\Delta\)-TSP},
  institution = {Fachbereich Mathematik},
  series    = {Preprints (rote Reihe) des Fachbereich Mathematik},
  number    = {266},
  pages     = {5},
  year      = {2017},
  url  = {http://nbn-resolving.de/urn:nbn:de:hbz:386-kluedo-50314},
}