Uno scritto qui: https://books.google.it/books?id=qrFMAAAAYAAJ&pg=PA257&lpg=PA257&dq=raffaello+Scarpettini&source=bl&ots=ex32xElGMU&sig=VRuCTtSfnzIKrzr93pi98nllSTY&hl=it&sa=X&ved=0ahUKEwjjqOic6qrcAhXODOwKHY6iA2M4ChDoAQgtMAE#v=onepage&q=raffaello%20Scarpettini&f=false
