@incollection{GraHorKazSat:09:Extracting, title = "Extracting Modules from Ontologies: A Logic-Based Approach", author = "Bernardo Cuenca Grau and Ian Horrocks and Yevgeny Kazakov and Ulrike Sattler", year = "2009", booktitle = "Modular Ontologies", editor = "Heiner Stuckenschmidt and Christine Parent and Stefano Spaccapietra", isbn = "978-3-642-01906-7", pages = "159-186", publisher = "Springer", series = "Lecture Notes in Computer Science", url = "http://dx.doi.org/10.1007/978-3-642-01907-4", volume = "5445", }