Konstantinos Douloudis, Maria Siapera, Gerasimos Dimitriou, Andriana Prentza. Application of Automated Trust Verification and Delegation Mechanisms in PEPPOL eProcurement Network. In Marinos Themistocleous, Maria Papadaki, editors, Information Systems - 16th European, Mediterranean, and Middle Eastern Conference, EMCIS 2019, Dubai, United Arab Emirates, December 9-10, 2019, Proceedings. Volume 381 of Lecture Notes in Business Information Processing, pages 448-457, Springer, 2019. [doi]