@InProceedings{brijder_et_al:LIPIcs.ICDT.2018.10,
  author =	{Brijder, Robert and Geerts, Floris and Van den Bussche, Jan and Weerwag, Timmy},
  title =	{{On the Expressive Power of Query Languages for Matrices}},
  booktitle =	{21st International Conference on Database Theory (ICDT 2018)},
  pages =	{10:1--10:17},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-063-7},
  ISSN =	{1868-8969},
  year =	{2018},
  volume =	{98},
  editor =	{Kimelfeld, Benny and Amsterdamer, Yael},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ICDT.2018.10},
  URN =		{urn:nbn:de:0030-drops-86007},
  doi =		{10.4230/LIPIcs.ICDT.2018.10},
  annote =	{Keywords: matrix query languages, relational algebra with aggregates, query evaluation problem, graph queries}
}