Llorenç Huguet i Rotger Alain Poli Applied Algebra, Algebraic Algorithms and Error-Correcting Codes, 5th International Conference, AAECC-5, Menorca, Spain, June 15-19, 1987, Proceedings AAECC Lecture Notes in Computer Science 356 Springer 1989 3-540-51082-6 db/conf/aaecc/aaecc1987.html