A follow-up on the analytical study of discolouration of the marble statues of Orsanmichele in Florence. - Pinna, Daniela; Galeotti, Monica; Rizzo, Adriana; Cantisani, Emma; Sciutto, Giorgia; Prati, Silvia; Mazzeo, Rocco; Zangheri, Martina; Roda, Aldo (Environmental Science & Pollution Research, 2017)