1. On the Preparata and Goethals codes;Baker;IEEE IT,1983
2. Algebraic Combinatorics I;Bannai,1984
3. On a pair of dual subschemes of H(n,q);Calderbank;Europ J. Combinat.,1985
4. Three weight codes and association schemes;Calderbank;Philips J. Res.,1984
5. P. Camion, private communication.