Media type: E-Article Title: Principles and Practice of Semantic Web Reasoning: Semantic Web Architecture: Stack or Two Towers? Contributor: Horrocks, Ian; Parsia, Bijan; Patel-Schneider, Peter; Hendler, James imprint: Springer Berlin Heidelberg, 2005 Published in: Principles and Practice of Semantic Web Reasoning Language: Not determined DOI: 10.1007/11552222_4 ISSN: 0302-9743; 1611-3349 Origination: Footnote: