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A Note Concerning Difference Families with Block Size Four
Check, Paul L
Charles J. Colbourn
University of Waterloo. Department of Combinatorics and Optimization
University of Waterloo. Faculty of Mathematics
出版
Faculty of Mathematics, University of Waterloo
, 1991
URL
http://books.google.com.hk/books?id=524uNAEACAAJ&hl=&source=gbs_api