@article{DBLP:journals/ws/GrauPS06,
  title = "Combining {OWL} ontologies using $\mathcal{E}$-connections.",
  author = "Bernardo {Cuenca Grau} and Bijan Parsia and Evren Sirin",
  year = "2006",
  journal = "J. Web Semantics",
  number = "1",
  pages = "40-59",
  volume = "4",
}