Protocol-Based Web Service Composition. - Ramy Ragab Hassen; Lhouari Nourine; Farouk Toumani (ICSOC, 2008)

Web services composition is decidable. - Ramy Ragab Hassen; Farouk Toumani; Lhouari Nourine (WebDB, 2008)

Automatic composition of prototocol-based Web services. (Composition automatique de services Web décrits par leurs protocoles). - Ramy Ragab Hassen (2009)

Decidability and Complexity of Web Service Business Protocol Synthesis. - Lhouari Nourine; Ramy Ragab Hassen; Farouk Toumani (Int. J. Cooperative Inf. Syst., 2016)