60 years of street art: A comparative study of the artists' materials through spectroscopic and mass spectrometric approaches. - La Nasa, Jacopo; Campanella, Beatrice; Sabatini, Francesca; Rava, Antonio; Shank, Will; Lucero-Gomez, Paola; De Luca, Daphne; Legnaioli, Stefano; Palleschi, Vincenzo; Colombini, Maria Perla; Degano, Ilaria; Modugno, Francesca (Journal of Cultural Heritage, 2021)