@article{FGG*13,
  title = "The Ontological Key: Automatically Understanding and Integrating Forms to Access the Deep Web",
  author = "Tim Furche and Georg Gottlob and Giovanni Grasso and Xiaonan Guo and Giorgio Orsi and Christian Schallhart",
  year = "2013",
  journal = "The VLDB Journal",
  month = "August",
  number = "5",
  pages = "615-640",
  url = "http://dx.doi.org/10.1007/s00778-013-0323-0",
  volume = "22",
  doi = "10.1007/s00778-013-0323-0",
}