TY - JOUR AU - Adegoke S. A. Osifodunrin TI - On the existence of (196,91,42) Hadamard difference sets JO - Kragujevac Journal of Mathematics PY - 2010 SP - 113 VL - 34 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KJM_2010_34_a9/ LA - en ID - KJM_2010_34_a9 ER -