1. Geodesic flows, interval maps, and symbolic dynamics,;R. Adler;Bull. Am. Math. Soc.,1991
2. Le codage du flot géodésique sur la surface modulaire,;P. Arnoux;(French) [Coding of the geodesic flow on the modular surface] Enseign. Math. (2),1994
3. Ein mechanisches system mit quasiergodischen bahnen,;E. Artin;Abh. Math. Sem. Univ. Hamburg,1924
4. Period functions for Maass wave forms. II: Cohomology,;R. Bruggeman;preprint,2013
5. Gamma-cohomology and the selberg zeta function,;U. Bunke;J. reine angew. Math.,1995