Resource and service virtualisation in M2M and IoT platforms - Panagiotis Karkazis; Trakadas, Panagiotis; Zahariadis, Theodore; Ioannis Chatzigiannakis; Mischa Dohler; Andrea Vitaletti; Athanasios Antoniou; Leligou, Helen Catherine; Sarakis, Lambros (International Journal of Intelligent Engineering Informatics, 2015)