The following publications are possibly variants of this publication:
- Type II Codes over F::2:::r:::::Koichi Betsumiya, Masaaki Harada, Akihiro Munemasa. AAECC 2001: 102-111 [doi]
- Construction of optimal Type IV self-dual codes over F::2::+::µ::F::2::T. Aaron Gulliver, Masaaki Harada. TIT, 45(7):2520-2521, 1999.
- On type II codes over F::4::Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada, Akihiro Munemasa. TIT, 47(6):2242-2248, 2001.