1. Bedford, T., M. Keane, and K. Series, Ergodic Theory, Symbolic Dynamics and Hyperbolic Spaces, Oxford University Press, 1991.
2. von Brzeski, J. G. and V. von Brzeski, "Topological wavelength shifts, electromagnetic field in Lobachevskian geometry," Progress in Electromagnetic Research, Vol. 39, 281-298, 2003.
doi:10.2528/PIER02112101
3. Burbigde, G. and S. O'Dell, Ap. J. Lett, Vol. 154, No. L41, 1972.
4. Buseman, H. and P. J. Kelly, Projective Geometry and Projective Metrics, Academic Press, 1953.
5. Haus, H. A., Waves and Fields in Optoelectronics, Prentice Hall, 1984.
6. Hecht, E. and A. Zajac, Optics, Adison-Wesley Publishing Company, 1974.
7. Mielnik, B., "Generalized quantum mechanics," Commun. Math. Phys., Vol. 37, 1973.
8. Ricci, F., "The search for gravitational waves: Anexp erimental physics challenge," Contemporary Physics, Vol. 39, 1998.
doi:10.1080/001075198182062
9. Saulson, P. R., "Fundamentals of interferometric gravitational wave detectors," World Scientific, 1994.
10. Schempp, W., "Analog RADAR signal design and digital signal pocessing, a Heisenberg Nilpotent Lie Group Approach," Mathematische Forschungsberichte, Vol. 147, 1985.
11. Swirko, Yu. P. and N. I. Zheludiev, Polarization of Light in Nonlinear Optics, John Wiley & Sons Ltd., 1998.
12. Terrel, J., Phys. Rev, Vol. 116, 1041, 1959.
13. Tifft, W., Ap. J., Vol. 206, 38, 1976.