Requirements for Taking Applications Beyond the Enterprise. - Graeme S. Port; Clifford Heath; Tim Segall; Phillip Merrick (World Wide Web J., 1996)

The Constellation Query Language. - Clifford Heath (OTM Workshops, 2009)

A Simple Metamodel for Fact-Based Queries. - Clifford Heath (OTM Workshops, 2013)

Towards Verbalizing Multilingual N-Ary Relations. - Yan Tang Demey; Clifford Heath (Towards the Multilingual Semantic Web, 2014)