Harada, Masaaki

• The Electronic Journal of Combinatorics Volume 17 (2010) - Research Papers
  Classification of Generalized Hadamard Matrices $H(6,3)$ and Quaternary Hermitian Self-Dual Codes of Length 18
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 17 (2010) - Notes
  Mutually Disjoint Steiner Systems $S(5, 8, 24)$ and $5$-$(24,12,48)$ Designs
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 15 (2008) - Notes
  An Extremal Doubly Even Self-Dual Code of Length 112
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 19, Issue 3 (2012) - Papers
  A Complete Classification of Doubly Even Self-dual Codes of Length 40
  Abstract  PDF  A complete classification of doubly even self-dual codes of length 40  official source
• The Electronic Journal of Combinatorics Volume 25, Issue 1 (2018) - Papers
  Nonexistence of Certain Singly Even Self-Dual Codes with Minimal Shadow
  Abstract  PDF  source files  Official Source
• The Electronic Journal of Combinatorics Volume 31, Issue 1 (2024) - Papers
  Hadamard Matrices of Orders 60 and 64 with Automorphisms of Orders 29 and 31
  Abstract  PDF