TY - JOUR AU - G. Colombo AU - V. V. Goncharov TI - Variational Inequalities and Regularity Properties of Closed Sets in Hilbert Spaces JO - Journal of convex analysis PY - 2001 SP - 197 EP - 222 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JCA_2001_8_1_JCA_2001_8_1_a8/ ID - JCA_2001_8_1_JCA_2001_8_1_a8 ER -