%0 Journal Article %A Adegoke S. A. Osifodunrin %T On the existence of (196,91,42) Hadamard difference sets %J Kragujevac Journal of Mathematics %D 2010 %P 113 %V 34 %I mathdoc %U http://geodesic.mathdoc.fr/item/KJM_2010_34_a9/ %G en %F KJM_2010_34_a9