1. Moncrief, V.: Infinite-dimensional family of vacuum cosmological models with Taub-NUT(Newman-Unti-Tamburino)-type extensions. Phys. Rev. D23, 312 (1981)
2. Moncrief, V.: Neighborhoods of Cauchy horizons in cosmological spacetimes with one Killing field. Ann. Phys. (N.Y.)141, 83 (1982)
3. Moncrief, V.: Paper in preparation
4. See for example the articles by Geroch, R., Horowitz, G.T., Penrose, R.: In: General relativity: an Einstein centenary survey. Hawking, S., Israel, W. (eds.). Cambridge: Cambridge University Press 1979
5. Misner, C., Thorne, K., Wheeler, J.: Gravitation. San Francisco: Freeman 1973