1. Andries E. Brouwer, Naoyuki Horiguchi, Masaaki Kitazume, and Hiroyuki Nakasora, A construction of the sporadic Suzuki graph from U3(4), J. Combin. Theory Ser. A 116 (2009), no. 5, 1056–1062.[MR]
  2. Naoki Chigira, Masaaki Harada, and Masaaki Kitazume, Extremal self-dual codes of length 64 through neighbors and covering radii, Des. Codes Cryptogr. 42 (2007), no. 1, 93–101.[MR]
  3. Naoki Chigira, Masaaki Harada, and Masaaki Kitazume, Permutation groups and binary self-orthogonal codes, J. Algebra 309 (2007), no. 2, 610–621.[MR]
  4. Naoki Chigira, Masaaki Harada, and Masaaki Kitazume, Some self-dual codes invariant under the Hall-Janko group, J. Algebra 316 (2007), no. 2, 578–590.[MR]
  5. Masaaki Harada, Masaaki Kitazume, Akihiro Munemasa, and Boris Venkov, On some self-dual codes and unimodular lattices in dimension 48, European J. Combin. 26 (2005), no. 5, 543–557.[MR]
  6. Masaaki Harada, Masaaki Kitazume, and Michio Ozeki, Ternary code construction of unimodular lattices and self-dual codes over Z6, J. Algebraic Combin. 16 (2002), no. 2, 209–223.[MR]
  7. Naoyuki Horiguchi, Masaaki Kitazume, and Hiroyuki Nakasora, The Hall-Janko graph and the Witt system W10, European J. Combin. 29 (2008), no. 1, 1–8.[MR]