TY - JOUR AU - Drudge, Keldon TI - Tactical decompositions of Steiner systems and orbits of projective groups JO - Journal of Algebraic Combinatorics PY - 2000 SP - 123 EP - 130 VL - 12 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JAC_2000__12_2_a4/ LA - en ID - JAC_2000__12_2_a4 ER -