Thakkar S.V., Pinna A., Carbonaro C.M., Malfatti L., Guardia P., Cabot A., Casula M.F. "Performance of oil sorbents based on reduced graphene oxide-silica composite aerogels" Journal of Environmental Chemical Engineering 8, 1, pp. 103632 - 2020 DOI: 10.1016/j.jece.2019.103632