@InProceedings{beyersdorff_et_al:LIPIcs.FSTTCS.2017.14,
  author =	{Beyersdorff, Olaf and Hinde, Luke and Pich, J\'{a}n},
  title =	{{Reasons for Hardness in QBF Proof Systems}},
  booktitle =	{37th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2017)},
  pages =	{14:1--14:15},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-055-2},
  ISSN =	{1868-8969},
  year =	{2018},
  volume =	{93},
  editor =	{Lokam, Satya and Ramanujam, R.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2017.14},
  URN =		{urn:nbn:de:0030-drops-83824},
  doi =		{10.4230/LIPIcs.FSTTCS.2017.14},
  annote =	{Keywords: proof complexity, quantified Boolean formulas, resolution, lower bounds}
}