@InProceedings{haddadan_et_al:LIPIcs.ESA.2019.56,
  author =	{Haddadan, Arash and Newman, Alantha},
  title =	{{Towards Improving Christofides Algorithm for Half-Integer TSP}},
  booktitle =	{27th Annual European Symposium on Algorithms (ESA 2019)},
  pages =	{56:1--56:12},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-124-5},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{144},
  editor =	{Bender, Michael A. and Svensson, Ola and Herman, Grzegorz},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ESA.2019.56},
  URN =		{urn:nbn:de:0030-drops-111772},
  doi =		{10.4230/LIPIcs.ESA.2019.56},
  annote =	{Keywords: Traveling salesman problem, subtour elimination relaxation, integrality gap, gluing subtours}
}