P. Griffiths and J. Harris, Principles of Algebraic Geometry, John Wiley and Sons Inc., New York, 1994.
 J. Morrow and K. Kodaira, Complex Manifolds, Holt, Rinehart and Winston, New York, 1971.
 D. B. Ray and I. M. Singer, Analytic Torsion for Complex Manifolds, Annals of Mathematics, Second Series, Vol. 98, No.1, pp. 154-177, Jul., 1973.
 C. L. Siegel, Lectures on advanced analytics number theory, Tata In- stitute, Bombay, 1961.