Peter F. Patel-Schneider; Matthew Horridge. <a href="http://www.w3.org/TR/2009/NOTE-owl2-manchester-syntax-20091027/"><cite>OWL 2 Web Ontology Language:Manchester Syntax.</cite></a> 27 October 2009. W3C Note. URL: <a href="http://www.w3.org/TR/2009/NOTE-owl2-manchester-syntax-20091027/">http://www.w3.org/TR/2009/NOTE-owl2-manchester-syntax-20091027/</a>