TY - JOUR AU - P. Boyvalenkov AU - S. Nikova TI - Improvements of the Lower Bounds on the Size of Some Spherical Designs JO - Mathematica balkanica PY - 1998 SP - 151 VL - 12 IS - 1-2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_1998_12_1-2_a13/ ID - MABA_1998_12_1-2_a13 ER -