TY - JOUR AU - Landjev, Ivan AU - Topalova, Svetlana TI - New Symmetric (61,16,4) Designs Invariant Under the Dihedral Group of Order 10 JO - Serdica Mathematical Journal PY - 1998 SP - 179 EP - 186 VL - 24 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SMJ2_1998_24_2_a4/ LA - en ID - SMJ2_1998_24_2_a4 ER -