D. Licursi, C. Antonetti, S. Fulignati, A. Corsini, N. Boschi, and A. Raspolli Galletti, “Smart Valorization of Waste Biomass: Exhausted Lemon Peels, Coffee Silverskins and Paper Wastes for the Production of Levulinic Acid”, Chemical Engineering Transactions, vol. 65, pp. 637-642, Jun. 2018.