Kilday, D. G.Margaritondo, G.Frankel, D. J.Anderson, J.Lapeyre, G. J.2006-10-032006-10-032006-10-03198710.1103/PhysRevB.35.9364https://infoscience.epfl.ch/handle/20.500.14299/234419High-Resolution Electron-Energy-Loss Study of NH3 Adsorption on Si(111)2x1 at Room-Temperaturetext::journal::journal article::research article