1. See for a review: Averin, D.V., Likharev, K.K.: In: Quantum effects in small disordered systems. Al'tshuler, B., Lee, P., Webb, R. (eds.). Amsterdam: Elsevier 1990
2. Scott-Thomas, J.H.F., Field, S.B., Kastner, M.A., Smith, H.I., Antonadis, D.A.: Phys. Rev. Lett.62, 583 (1989)
3. Field, S.B., Kastner, M.A., Meirav, U., Scott-Thomas, J.H.F., Antonadis, D.A., Smith, H.I., Wind, S.J.: Phys. Rev. B42, 3523 (1990)
4. Staring, A.A.M., Houten, H. van, Beenakker, C.W.J., Foxon, C.T.: High magnetic fields in semiconductor physics, III. Landwehr, G. (ed.), Berlin, Heidelberg, New York: Springer 1990
5. Houten, H. van, Beenakker, C.W.J.: Phys. Rev. Lett.63, 1893 (1989)