Applicable algebra, error-correcting codes, combinatorics and computer algebra proceedings
International Conference on Applied Algebra Algorithmics and Error-Correcting Codes, 4., Karlsruhe,1986 Thomas Beth
Berlin Springer 1988
Available at
ICMC - Inst. Ciên. Mat. Computação
(68-02 Lncs v.307 ex.1 ) and other locations(GetIt)