%0 Journal Article %A Caggegi, Andrea %T $2-(n^2, 2n, 2n-1)$ designs obtained from affine planes %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 2006 %P 31-34 %V 45 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_2006__45_1_a1/ %G en %F AUPO_2006__45_1_a1