1. Dennis, J. E., Jr., and Schnabel, R. B., Numerical Methods for Unconstrained Optimization and Nonlinear Equations, Prentice-Hall, Englewood Cliffs, New Jersey, 1983.
2. Nazareth, J. L., The Newton-Cauchy Framework, Springer Verlag, Berlin, Germany, 1994.
3. Davidon, W. C., Conic Approximations and Collinear Scalings for Optimizers, SIAM Journal on Numerical Analysis, Vol. 17, pp. 268–281, 1980.
4. Sorensen, D. C., The q-Superlinear Convergence of a Cllinear Scaling Algorithm for Unconstrained Optimization, SIAM Journal on Numerical Analysis, Vol. 17, pp. 84–114, 1980.
5. Yuan, Y., and Byrd, R. H., Non-Quasi-Newton Updates for Unconstrained Optimization, Journal of Computational Mathematics, Vol. 13, pp. 95–117, 1995.