@inproceedings{2004-Grootjen-EffectivenessIE,
  author		= "Grootjen, F.A. and Weide, Th.P. van der",
  title			= "{Effectiveness of Index Expressions}",
  booktitle		= "{9th International Conference on Applications of Natural Language to Information Systems (NLDB 2004)}",
  series		= "Lecture Notes in Computer Science",
  volume		= "3136",
  year			= "2004",
  code			= "icis.NIII-R0329",
  research_group	= "iris",
  pages			= "171--181",
  class			= "Conference"
}