New Extremal Doubly-Even [64, 32, 12] Codes

@article{Harada1995NewED,
  title={New Extremal Doubly-Even [64, 32, 12] Codes},
  author={Masaaki Harada and Hiroshi Kimura},
  journal={Des. Codes Cryptography},
  year={1995},
  volume={6},
  pages={91-96}
}