1. A.A. Beilinson, J.N. Bernstein, P. Deligne, “Faisceaux pervers”, in ‘Asterisque 100’, Soc. Math. France 1982
2. A.A. Beilinson, V.A. Ginzberg, V.V. Schechtman, “Koszul Duality”, J. Geom. Phys. `5’(1988) no. 3, 317–350.
3. S. Bloch, “Algebraic cycles and higher K-theory”, Adv. in Math. `61’ No. 3 (1986) 267–304.
4. A. Borel, “Stable real cohomology of arithmetic groups”, Ann. Sci. Éc. Norm. Sup. Ser. 4 `7’(1974) 235–272.
5. P. Deligne, “Tannakian Categories”, in `Hodge Cycles, Motives and Shimura Varieties’, LNM 900, Springer 1982.