@article{journals/sigmod/GottlobKP03a,
  title = "{XPath} processing in a nutshell",
  author = "Georg Gottlob and Christoph Koch and Reinhard Pichler",
  year = "2003",
  journal = "{SIGMOD Record}",
  number = "2",
  pages = "21-27",
  volume = "32",
  doi = "10.1145/776985.776988",
}