1. Aldovandi, R., and Stedile, E. (1984).International Journal of Theoretical Physics,23, 301.
2. Asanov, G. S., and Ponomarenko, S. F. (1989).Finder Bundles on Space-Time. Associated Gauge Fields and Connections, Stiinta, Chisinau, Moldova [in Russian].
3. Bishop, R. L., and Crittenden, R. L. (1965).Geometry of Manifolds, Academic Press, New York.
4. Kadic, A., and Edelen, D. (1983).A Gauge Theory of Dislocations and Disclinations, Springer-Verlag, Berlin.
5. Luehr, C. P., and Rosenbaum, M. (1980).Journal of Mathematical Physics,21, 1432.