no. 3
Joins of schemes, linear projections
Compositio Mathematica, Tome 31 (1975) no. 3, pp. 309-343. 
@article{CM_1975__31_3_309_0,
     author = {Altman, Allen B. and Kleiman, Steven L.},
     title = {Joins of schemes, linear projections},
     journal = {Compositio Mathematica},
     pages = {309--343},
     publisher = {Noordhoff International Publishing},
     volume = {31},
     number = {3},
     year = {1975},
     mrnumber = {396560},
     zbl = {0337.14004},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1975__31_3_309_0/}
}
TY  - JOUR
AU  - Altman, Allen B.
AU  - Kleiman, Steven L.
TI  - Joins of schemes, linear projections
JO  - Compositio Mathematica
PY  - 1975
SP  - 309
EP  - 343
VL  - 31
IS  - 3
PB  - Noordhoff International Publishing
UR  - http://archive.numdam.org/item/CM_1975__31_3_309_0/
LA  - en
ID  - CM_1975__31_3_309_0
ER  - 
%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
Altman, Allen B.; Kleiman, Steven L. Joins of schemes, linear projections. Compositio Mathematica, Tome 31 (1975) no. 3, pp. 309-343. http://archive.numdam.org/item/CM_1975__31_3_309_0/

[1] A. Altman and S. Kleiman: A Divisorial Cycle Acquiring an Embedded Component under a Flat Specialization (to appear). | Numdam | Zbl

[2] C. Chevalley: Les classes d'équivalence rationnelle (I et II). Séminaire C. Chevalley, 2e Année: 1958, Anneaux de Chow et Applications, exp 2, 14 pp and exp 3, 18 pp, Secrétariat Mathématique, Paris, 134 pp (mimeographed). | Numdam | MR | Zbl

[3] W.L. Chow: On Equivalence Classes of Cycles in an Algebraic Variety. Annals of Mathematics v. 64 (1956) 450-479. | MR | Zbl

[4] A. Grothendieck and J. Dieudonné: Eléments de Géometrie Algébrique I Springer-Verlag (1971) (cited EGA I). | Zbl

[5] A. Grothendieck and J. Dieudonné: Eléments de Géométrie Algébrique. Publ. Math. No. 8, IHES, (1961) (cited EGA II). | Numdam

[6] A. Holme: Embedding-obstruction for algebraic varieties I. University of Bergen, Norway, Preprint No. 1.

[7] N. Katz: Etude cohomologique des pinceaux de Lefschetz, Expose XVIII, SGA 7 II. Lecture Notes in Math No. 340, Springer-Verlag (1973) especially Sec. 3.1, p. 267. | Zbl

[8] S. Kleiman: Geometry on Grassmannians and Applications to Splitting Bundles and Smoothing Cycles. Publ. Math. No. 36, IHES, (1969) pp. 281-298. | Numdam | MR | Zbl

[9] A. Lascu and D. Scott: An Algebraic Correspondence with Applications to Projective Bundles and Blowing-Up Chern Classes. (to appear in Annali di Matematica, Pura ed Applicata). | MR | Zbl

[10] J. Roberts: Chow's Moving Lemma. Algebraic Geometry, Oslo 1970, Wolters-Noordhoff Publishing. Groningen, (1972) 89-96. | MR

[11] P. Samuel: Rational Equivalence of Arbitrary Cycles. American Journal of Mathematics, v 78 (1956) 383-400. | MR | Zbl