Software-Defined Metasurface Paradigm: Concept, Challenges, Prospects - Pitilakis, A.; Tasolamprou, A.C.; Liaskos, C.; Liu, F.; O. Tsilipakos; Wang, X.; Mirmoosa, M.S.; Kossifos, K.; Georgiou, J.; Pitsilides, A.; Kantartzis, N.V.; Ioannidis, S.; et al. (2018 12th International Congress on Artificial Materials for Novel Wave Phenomena, METAMATERIALS 2018, 2018)