%0 Journal Article %A D. Dimovski %A A. Mandak %T Weighted block designsand Steiner systems %J Novi Sad Journal of Mathematics %D 1999 %P 163-169 %V 29 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/NSJOM_1999_29_2a_10/ %F NSJOM_1999_29_2a_10