%0 Journal Article %A David Clark %A Vladimir D. Tonchev %T Enumeration of (16,4,16,4) relative difference sets %J The electronic journal of combinatorics %D 2013 %V 20 %N 1 %U http://geodesic.mathdoc.fr/articles/10.37236/2776/ %R 10.37236/2776 %F 10_37236_2776