1. Few distances sets;Blokhuis,1973
2. A contribution to the non-existence of perfect codes;Best,1982
3. Codes parfaits et uniformement empiles;Cohen;Revue du Cethedec,1976
4. Four fundamental parameters of a code and their combinatorial significance;Delsarte;Information and Control,1973
5. Bounds for unrestricted codes by linear programming;Delsarte;Philips Research Reports,1972