@TechReport{Isenberg:2014:TDU,
  author = {Petra Isenberg and Tobias Isenberg and Michael Sedlmair and
Jian Chen and Torsten M{\"o}ller},
  title = {Toward a Deeper Understanding of Visualization Through
Keyword Analysis},
  number = {RR-8580},
  institution = {INRIA},
  address = {France},
  year = {2014},
  month = aug,
  url = {http://hal.inria.fr/hal-01055309},
  url2 = {http://www.arxiv.org/abs/1408.3297},
  note = {Also published on arXiv.org (\# 1408.3297)},
}