1. Gribov, V. N.: Instability of non-abelian gauge theories and impossibility of choice of Coloumb gauge. SLAC Translation 176 (1977)
2. Jackiw, R., Muzinick, I., Rebbi, C.: Coloumb gauge description of large Yang-Mills field. Phys. Rev.17, 1576 (1978)
3. Ebin, D.: The manifold of Riemannian metrics. In: Proceedings of symposia in pure mathematics, Vol. 15, pp. 11–40. Providence, Rhode Island: American Mathematical Society 1970
4. Palais, R.: Foundations of global non-linear analysis. New York: W. A. Benjamin, Inc. 1968
5. Fischer, A., Marsden, J.: The space of conformally related metrics. Can. J. Math.29, 193–209 (1977)