@article{journals/dam/GottlobSS92,
  title = "Selective Inheritance of Attribute Values in Relational Databases",
  author = "Georg Gottlob and Michael Schrefl and Markus Stumptner",
  year = "1992",
  journal = "Discrete Applied Mathematics",
  number = "2",
  pages = "187-216",
  volume = "40",
}