@inbook{56ccdaac43e642d8b3775ea52b8a0aee,
  title     = "Heuristics-based query optimisation for SPARQL",
  author    = "P. Tsialiamanis and L. Sidirourgos and V. Christophides and I. Fundulaki and P.A. Boncz",
  year      = "2012",
  booktitle = "Proc. International Conference on Extending Database Technology (EDBT)",
}