Privacy and Traceability in Social Networking Sites. - Efthymios Lalas; Anastasios Papathanasiou; Costas Lambrinoudakis (Panhellenic Conference on Informatics, 2012)

ProCAVE: Privacy-Preserving Collection and Authenticity Validation of Online Evidence. - Efthymios Lalas; Lilian Mitrou; Costas Lambrinoudakis (TrustBus, 2013)