Inter-laboratory comparison within the RESORAD Italian network on the natural occurring radioactive materials (NORMs). - Fontani, Sonia; Innocenzi, Valeria; Menna, Giuseppe; De Felice, Pierino; Capogni, Marco; Capone, Mauro; Carconi, Pierluigi; Croia, Michele; Fazio, Aldo; Petrucci, Andrea (EPJ Web of Conferences, 2025)