1. Jens-Matthias Bohli, Rainer Steinwandt, María Isabel González Vasco, and Consuelo Martínez, Weak keys in MST1, Des. Codes Cryptogr. 37 (2005), no. 3, 509–524.[MR]
  2. Santos González, Consuelo Martínez, and Alejandro P. Nicolás, Classic and quantum error correcting codes, Coding Theory and Applications, Lecture Notes in Computer Science, vol. 5228, Springer, 2008, pp. 56-68.