Disinfection of indoor air for the inactivation of SARS-CoV-2: a review of the effectiveness of UV-C technology and gaps in research - Rada, Elena Cristina; Vignali, Chiara; Bellazzi, Stefano; Carnevale Miino, Marco; Abbà, Alessandro; Szabó, Márta; Torretta, Vincenzo; Collivignarelli, Maria Cristina (Frontiers in Built Environment, 2025)