An Action Semantics for MML. - José M. Álvarez 003; Tony Clark 001; Andy Evans; Paul Sammut (UML, 2001)

Mapping between Levels in the Metamodel Architecture. - José M. Álvarez 003; Andy Evans; Paul Sammut (UML, 2001)

Modeling Language Transformations. - Tony Clark 001; Andy Evans; Girish Maskeri Rama; Paul Sammut; James S. Willans (Obj. Logiciel Base données Réseaux, 2003)

Transformation Language Design: A Metamodelling Foundation. - Tony Clark 001; Andy Evans; Paul Sammut; James S. Willans (ICGT, 2004)

Essentials of the 3rd UML Workshop in Software Model Engineering (WiSME'2004). - Martin Gogolla; Paul Sammut; Jon Whittle 001 (UML Satellite Activities, 2004)

A Unified Superstructure for UML. - Andy Evans; Paul Sammut; James S. Willans; Alan Moore; Girish Maskeri Rama (J. Object Technol., 2005)

Beyond Annotations: A Proposal for Extensible Java (XJ). - Tony Clark 001; Paul Sammut; James S. Willans (SCAM, 2008)

Applied Metamodelling: A Foundation for Language Driven Development (Third Edition). - Tony Clark 001; Paul Sammut; James S. Willans (CoRR, 2015)

Super-Languages: Developing Languages and Applications with XMF (Second Edition). - Tony Clark 001; Paul Sammut; James S. Willans (CoRR, 2015)