Allen, Bruce Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
Allen, B., & Shellard, E. P. S. (1990). On the evolution of cosmic strings. In G. W. Gibbons, S. W. Hawking, & T. Vachaspati (Eds.), The formation and evolution of cosmic strings: proceedings of a workshop supported by the SERC and held in Cambridge, 3-7 July, 1989 (pp. 421-448). Cambridge: Cambridge University Press.
