TY - JOUR AU - V. G. Boltyanskii TI - Hindering systems for convex bodies JO - Sbornik. Mathematics PY - 1997 SP - 327 EP - 339 VL - 188 IS - 3 UR - http://geodesic.mathdoc.fr/item/SM_1997_188_3_a0/ LA - en ID - SM_1997_188_3_a0 ER -