TY - JOUR AU - Roberts, Joel TI - Some properties of double point schemes JO - Compositio Mathematica PY - 1980 SP - 61 EP - 94 VL - 41 IS - 1 PB - Sijthoff et Noordhoff International Publishers UR - http://www.numdam.org/item/CM_1980__41_1_61_0/ LA - en ID - CM_1980__41_1_61_0 ER -