Characterization of indoor reconfigurable intelligent surface-assisted channels at 304 GHz: Experimental measurements, challenges, and future directions - Alexandropoulos, G. C.; Jung, B. K.; Gavriilidis, P.; Matos, S.; Loeser, L. H. W.; Elesina, V.; Clemente, A.; D’Errico, R.; Pessoa, L. M.; Kürner, T. (IEEE Vehicular Technology Magazine, 2025)