@InProceedings{bergold_et_al:LIPIcs.SoCG.2023.17,
  author =	{Bergold, Helena and Felsner, Stefan and Scheucher, Manfred},
  title =	{{An Extension Theorem for Signotopes}},
  booktitle =	{39th International Symposium on Computational Geometry (SoCG 2023)},
  pages =	{17:1--17:14},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-273-0},
  ISSN =	{1868-8969},
  year =	{2023},
  volume =	{258},
  editor =	{Chambers, Erin W. and Gudmundsson, Joachim},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.SoCG.2023.17},
  URN =		{urn:nbn:de:0030-drops-178676},
  doi =		{10.4230/LIPIcs.SoCG.2023.17},
  annote =	{Keywords: arrangement of pseudolines, extendability, Levi’s extension lemma, arrangement of pseudohyperplanes, signotope, oriented matroid, partial order, Boolean satisfiability (SAT)}
}