1. Al-Baali, M.: Numerical experience with a class of self-scaling quasi-Newton algorithms. J. Optim. Theory Appl. 96, 533–553 (1998)
2. Al-Baali, M., Grandinetti, L.: On practical modifications of the quasi-Newton BFGS method. AMO-Adv. Model. Optim. 11(1), 63–76 (2009)
3. Andrei, N.: RP: a package for efficient calculation of sparse Jacobian matrix for nonlinear systems of equations using finite differences. (Technical Report, Research Institute for Informatics, Bucharest, Romania, April 15, 1–31) (1983)
4. Andrei, N.: Performance of conjugate gradient algorithms on some MINPACK-2 unconstrained optimization applications. Stud. Inform. Control. 15(2), 145–168 (2006b)
5. Andrei, N.: Acceleration of conjugate gradient algorithms for unconstrained optimization. Appl. Math. Comput. 213(2), 361–369 (2009c)