Command Reference : User-Defined Optimization : References
  
References
Berndt, E., Hall, B., Hall, R., and Hausman, J. (1974). Estimation and Inference in Nonlinear Structural Models, Annals of Economic and Social Measurement, Vol. 3, 653–665.
Dennis, J. E. and R. B. Schnabel (1983). “Secant Methods for Systems of Nonlinear Equations,” Numerical Methods for Unconstrained Optimization and Nonlinear Equations. Prentice-Hall, London.
More and Sorensen (1983). Computing a Trust Region Step, SIAM Journal of Scientific Statistical Computing, Vol. 4, 553–572.