1. M. Ben-Or, Lower bounds for algebraic computation trees, inProc.15th ACM Symposium on the Theory of Computing, May 1983, 80 – 86.
2. Robin Hartshorne,Algebraic Geometry, Graduate Texts in Mathematics, Vol. 52, Springer-Verlag, New York, 1977.
3. J. Milnor, On the Betti numbers of real varieties,Proc. Amer. Math.Soc., 15 (1964), 275 – 280.
4. J. Milnor,Singular Points of Complex Hyper surfaces, Annals of Math Studies, Study 61, Princeton, 1968.
5. J. Milnor,Morse Theory, Annals of Math Studies, Study 51, 1963.