1. G. Binnig, H. Rohrer, Ch. Gerber, E. Weibel, Phys. Rev. Lett. 49, 57 (1982); Phys. Rev. Lett. 50, 120 (1983).
2. G. Binnig, C. F. Quate, Ch. Gerber, Phys. Rev. Lett. 56, 930 (1986).
3. D. A. Bonnell (Ed.), Scanning Probe Microscopy and Spectroscopy: Theory, Techniques and Applications. 2nd Edn, Wiley VCH, New York, 2000.
4. R. Wiesendanger (Ed.), Scanning Probe Microscopy and Spectroscopy-Methods and Applications, Cambridge University Press, Cambridge UK, 1994.
5. G. Friedbacher, H. Fuchs, Classification of Scanning Probe Microscopies—(Technical Report), Pure and Appl. Chem. 71, 1337 (1999).