@inproceedings{asiacrypt-1991-305,
  title={Simultaneous Attacks in Differential Cryptanalysis (Getting More Pairs Per Encryption)},
  booktitle={Advances in Cryptology - ASIACRYPT '91, International Conference on the Theory and Applications of Cryptology, Fujiyoshida, Japan, November 11-14, 1991, Proceedings},
  series={Lecture Notes in Computer Science},
  publisher={Springer},
  volume={739},
  pages={489-492},
  doi={10.1007/3-540-57332-1_44},
  author={Matthew Kwan},
  year=1991
}