%% -*-BibTeX-*-


@Article{Groetschel1978,
  author       = "Martin Gr{\"o}tschel",
  title        = "Hypo-Hamiltonian Facets of the Symmetric Travelling Salesman Polytope",
  journal      = "Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik",
  volume       = "58",
  pages        = "T469--T471",
  year         = "1978",
  classmath    = "*90C10 94C15 05C35 52Bxx 05C38",
  language     = "English",
}