1. C. Chevalley. A. Grothendieck, and J.-P. Serre, Anneaux de Chow et applications, Séminaire C. Chevalley, 2c annee, Secr. Math., Paris, 1958.
2. P. Baum, W. Fulton, and R. MacPherson, Riemann-Roch for singular varieties, Publ. Math. I.H.E.S., no. 45 (1975), 101–145.
3. A. Grothendieck and J. Dieudonné, Eléments de géométrie algébrique II, Publ. Math. I.H.E.S., no. 8 (1961).
4. W. Fulton, Rational equivalence for singular varieties, Publ. Math. I.H.E.S., no. 45 (1975), 147–167.
5. W. Fulton and D. Laksov, Residual intersections and the double point formula, these proceedings.