1. R. F. Brown, M. Furi, L. Górniewicz, and B. Jiang (eds.), Handbook of Topological Fixed Point Theory, Springer, Dordrecht, 2005, pp. x+971.[MR/link]
  2. Ronald Brown, Neil Ghani, Anne Heyworth, and Christopher D. Wensley, String rewriting for double coset systems, J. Symbolic Comput. 41 (2006), no. 5, 573–590.[MR/arXiv]