1. Mathias Kratzer, Wolfgang Lempken, Gerhard O. Michler, and Katsushi Waki, Another existence and uniqueness proof for McLaughlin's simple group, J. Group Theory 6 (2003), no. 4, 443–459.[MR]
  2. Gerhard O. Michler, Michael Weller, and Katsushi Waki, Natural existence proof for Lyons simple group, J. Algebra Appl. 2 (2003), no. 3, 277–315.[MR]
  3. Katsushi Waki, An introduction to magma (japanese), Noda, Matu-Tarow (ed.). Research on the theory and applications of computer algebra. Proceedings of a symposium held at the Research Institute for Mathematical Sciences, Kyoto University, Kyoto, Japan, November 16–18, 1994., RIMS Kokyuroku, vol. 920, Kyoto University, Kyoto, 1995, pp. 173–179.
  4. Katsushi Waki, Calculation of direct summands of FG-modules, Sci. Rep. Hirosaki Univ. 44 (1997), no. 2, 193–200.[MR]