%0 Journal Article %A Altman, Allen B. %A Kleiman, Steven L. %T Joins of schemes, linear projections %J Compositio Mathematica %D 1975 %P 309-343 %V 31 %N 3 %I Noordhoff International Publishing %U http://archive.numdam.org/item/CM_1975__31_3_309_0/ %G en %F CM_1975__31_3_309_0