1. P. BALDI, N. LOHOUE et J. PEYRIERE.-C.R. Acad. Sci. Paris t. 285 (A) p. 1103–1104 (1977).
2. M.N. BARBER, B.W. NINHAM.-Randon and restricted walks: theory and applications. New-york Gordon and Breach (1970).
3. P. BOUGEROL.-Théorème central limite local sur certains groupes de Lie. Ann. E.N.S. t. 141 p. 403–432 (1981).
4. L. BREIMAN.-Probability. Reading Mass. Addisons Wesley (1968).
5. R. BOWEN.-Equibrium states and the ergodic theory of Anosov diffeomorphisms. Springer Lect. Notes 470 (1975).