%0 Journal Article %A Roberts, Joel %T Some properties of double point schemes %J Compositio Mathematica %D 1980 %P 61-94 %V 41 %N 1 %I Sijthoff et Noordhoff International Publishers %U http://www.numdam.org/item/CM_1980__41_1_61_0/ %G en %F CM_1980__41_1_61_0