@InProceedings{berkholz_et_al:LIPIcs.CSL.2013.61,
  author =	{Berkholz, Christoph and Krebs, Andreas and Verbitsky, Oleg},
  title =	{{Bounds for the quantifier depth in finite-variable logics: Alternation hierarchy}},
  booktitle =	{Computer Science Logic 2013 (CSL 2013)},
  pages =	{61--80},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-60-6},
  ISSN =	{1868-8969},
  year =	{2013},
  volume =	{23},
  editor =	{Ronchi Della Rocca, Simona},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2013.61},
  URN =		{urn:nbn:de:0030-drops-41907},
  doi =		{10.4230/LIPIcs.CSL.2013.61},
  annote =	{Keywords: Alternation hierarchy, finite-variable logic}
}