Enhancement in combustion, performance, and emission characteristics of a diesel engine fueled with Ce-ZnO nanoparticle additive added to soybean biodiesel blends Authors Hussain F., Soudagar M.E.M., Afzal A., Mujtaba M.A., Rizwanul Fattah I.M., Naik B., Mulla M.H., Badruddin I.A., Yunus Khan T.M., Raju V.D., Gavhane R.S., Ashrafur Rahman S.M. Publisher Energies Publication year 2020