@article{BS20b,
  title =	 {A historical note on the 3/2-approximation algorithm
                  for the metric traveling salesman problem},
  author =	 {René van Bevern and Viktoriia A. Slugina},
  year =	 {2020},
  date =	 {2020-11-17},
  journal =	 {Historia Mathematica},
  url_Preprint = {https://arxiv.org/abs/2004.02437},
  url_Poster =
                  {https://figshare.com/articles/poster/Parallel_Roads_to_the_Traveling_Salesman_3_2-Approximation/12728723},
  url_Slides =
                  {https://www.researchgate.net/publication/348297719_Algoritm_Kristofidesa_ili_Kristofidesa-Serdukova_Istoria_otkrytia_i_publikacii},
  volume =	 53,
  pages =	 {118-127},
  doi =		 {10.1016/j.hm.2020.04.003},
  abstract =	 {One of the most fundamental results in combinatorial
                  optimization is the polynomial-time
                  3/2-approximation algorithm for the metric traveling
                  salesman problem. It was presented by Christofides
                  in 1976 and is well known as "the Christofides
                  algorithm". Recently, some authors started calling
                  it "Christofides-Serdyukov algorithm", pointing out
                  that the same result was published independently in
                  the USSR in 1978. We provide some historic
                  background on Serdyukov's findings and a translation
                  of his article.}
}

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