A Relational Approach to Complex Dataflows. - Yannis Chronis; Yannis Foufoulas; Vaggelis Nikolopoulos; Alexandros Papadopoulos; Lefteris Stamatogiannakis; Christoforos Svingos; Yannis E. Ioannidis (EDBT/ICDT Workshops, 2016)

Mv-Index: An Efficient Index for Graph-Query Containment. - Theofilos Mailis; Yannis Kotidis; Vaggelis Nikolopoulos; Evgeny Kharlamov; Ian Horrocks 001; Yannis E. Ioannidis (ISWC (Satellites), 2019)

An Efficient Index for RDF Query Containment. - Theofilos Mailis; Yannis Kotidis; Vaggelis Nikolopoulos; Evgeny Kharlamov; Ian Horrocks 001; Yannis E. Ioannidis (SIGMOD Conference, 2019)