• Sommerhalter, Ch.; Glatzel, Th.; Matthes, Th.W.; Jäger-Waldau, A.; Lux-Steiner, M.Ch.: Kelvin probe force microscopy in ultra high vacuum using amplitude modulation detection of the electrostatic forces. Applied Surface Science 157 (2000), p. 263-268

10.1016/S0169-4332(99)00537-1