1. Joins and higher secant varieties;Ådlansvik;Math. Scand.,1987
2. D. Bayer, The Division Algorithm and the Hilbert Scheme, Thesis, Harvard University, 1982.
3. Commutative Algebra (with a View toward Algebraic Geometry);Eisenbud,1995
4. Joins and intersections;Flenner;Math. Ann.,1991
5. Joins, tangencies and intersections;Flenner;Math. Ann.,1995