By Blackburn S.R.   Spencer A.J.   in Journal of Combinatorial Theory, Series A

ISSN:0097-3165|103|1|53-68

Elsevier‎(2003)‎

Access to resources Favorite 13.119461

By Blackburn S. R.   in Designs, Codes and Cryptography

ISSN:0925-1022|9|3|251-256

Springer Publishing Company ‎(1996)‎

Access to resources Favorite 5.9058757