Włodzimierz Drabent, Jakob Henriksson, Jan Małuszyński:
HD-rules: a hybrid system interfacing Prolog with DL-reasoners.
Abstract
The paper presents a prototype system HD-Rules (Hybrid
    integration of Description Logic and Rules) that integrates normal clauses
    under the wellfounded semantics with ontologies specified in Description
    Logics. The system is hybrid: it re-uses XSB Prolog for rule reasoning and
    existing OWL reasoners for ontology reasoning. This makes it possible to
    use some Prolog built-ins (like arithmetic) in the rules. The system
    itself is written in XSB Prolog; its interface to OWL employs Java. The
    paper outlines the principles of the integration, illustrates the use of
    the system on examples, and discusses in detail the main implementation
    techniques. 
      
URL:
http://rewerse.net/publications/rewerse-publications.html#REWERSE-RP-2007-053
@inproceedings{REWERSE-RP-2007-053,
	author = {W\lodzimierz Drabent and Jakob Henriksson and Jan Ma\luszyński},
	title = {HD-rules: a hybrid system interfacing Prolog with DL-reasoners},
	booktitle = {Proceedings of 2nd International Workshop on Applications of Logic Programming to the Web, Semantic Web and Semantic Web Services, Porto, Portugal (13th September 2007)},
	year = {2007},
	volume = {287},
	pages = {76--90},
	url = {http://rewerse.net/publications/rewerse-publications.html#REWERSE-RP-2007-053}
}