1. E. W. Montroll and M. F. Schlesinger, in Studies in Statistical Mechanics, Ed. by J. Leibowitz and E. W. Montroll (North-Holland, Amsterdam, 1984), Vol. 2, p. 1.
2. J.-P. Bouchand and A. Georges, Phys. Rep. 195, 127 (1990).
3. M. B. Isichenko, Rev. Mod. Phys. 64, 961 (1992).
4. G. M. Zaslavsky, Physica D (Amsterdam) 76, 110 (1994).
5. K. V. Chukbar, Zh. Éksp. Teor. Fiz. 108, 1875 (1995) [JETP 81, 1025 (1995)].