1. Ezio Biglieri, John K. Karlof, and Emanuele Viterbo, Representing group codes as permutation codes, IEEE Trans. Inform. Theory 45 (1999), no. 6, 2204–2207.[MR]
  2. John K. Karlof and Yaw O. Chang, Optimal permutation codes for the Gaussian channel, IEEE Trans. Inform. Theory 43 (1997), no. 1, 356–358.[MR]