Steiner P.Roth R.Gnecco E.Baratoff A.Meyer E.2020-12-042020-12-042010http://hdl.handle.net/20.500.12614/640enAtribuciĆ³n-NoComercial-SinDerivadas 3.0 EspaƱaAngular dependence of static and kinetic friction on alkali halide surfacesresearch article10.1103/PhysRevB.82.205417open access