1. For a review on quantum dots see L. P. Kouwenhoven, C. M. Marcus, P. L. McEuen, S. Tarucha, R. M. Westervelt, and N. S. Wingreen, “Electron Transport in Quantum Dots”, in Mesoscopic Electron Transport, Proceedings of a NATO Advanced Study Institute ,edited by L. P. Kouwenhoven, G. Schön, and L. L. Sohn, (Kluwer, Dodrecht, Netherlands, 1997), Ser. E, Vol. 345, p. 105.
2. H. Smith and H. G. Craighead, Physics Today 24, February 1990
3. For a review, see Technology of Proximal Probe Lithography ,edited by C. R. K. Marrian, (SPIE Optical Engineering Press, Bellingham, WA, 1993)
4. a. R. Wiesendanger, Appl. Surf Sci. 54, 271 (1992).
5. M. A. McCord and R. F. W. Pease, Appl. Phys. Lett. 50, 269 (1987)