Cloud4SOA: A Semantic-Interoperability PaaS Solution for Multi-cloud Platform Management and Portability. - Eleni Kamateri; Nikolaos Loutas; Dimitris Zeginis; James Ahtes; Francesco D'Andria; Stefano Bocconi; Panagiotis Gouvas; Giannis Ledakis 001; Franco Ravagli; Oleksandr Lobunets; Konstantinos A. Tarabanis (ESOCC, 2013)