@InCollection{cooper_et_al:DFU.Vol7.15301.113,
  author =	{Cooper, Martin C. and Zivny, Stanislav},
  title =	{{Hybrid Tractable Classes of Constraint Problems}},
  booktitle =	{The Constraint Satisfaction Problem: Complexity and Approximability},
  pages =	{113--135},
  series =	{Dagstuhl Follow-Ups},
  ISBN =	{978-3-95977-003-3},
  ISSN =	{1868-8977},
  year =	{2017},
  volume =	{7},
  editor =	{Krokhin, Andrei and Zivny, Stanislav},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DFU.Vol7.15301.113},
  URN =		{urn:nbn:de:0030-drops-69616},
  doi =		{10.4230/DFU.Vol7.15301.113},
  annote =	{Keywords: Constraint satisfaction problems, Optimisation, Tractability}
}