1. Yu. V. Sharvin, Zh. Eksp. Teor. Fiz. 48, 984 (1965).
2. Y. Imry, Introduction to Mesoscopic Physics (Oxford Press, Oxford, 1997; Fizmatlit, Moscow, 2004) [in Russian].
3. C. W. J. Beenakker and H. van Houten, in Solid State Physics. Advances in Research and Applications, Ed. by D. Turnbull, H. Ehrenreich (Academic, New York, 1991), Vol. 44, p. 1.
4. V. T. Renard, O. A. Tkachenko, V. A. Tkachenko, et al., Phes. Rev. Lett. 100, 186801 (2008).
5. B. L. Altshuler and A. G. Aronov, in Electron-Electron Interactions in Disordered Systems, Ed. by A. L. Efros, M. Pollak (North-Holland, Amsterdam, 1985), p. 1.