Algorithm 500: Minimization of Unconstrained Multivariate Functions [E4]. - David F. Shanno; Kang-Hoh Phua (ACM Trans. Math. Softw., 1976)

Inexact Step Lengths and Quasi-Newton Methods. - David F. Shanno; Kang-Hoh Phua (IFIP Congress, 1977)

Matrix conditioning and nonlinear optimization. - David F. Shanno; Kang-Hoh Phua (Math. Program., 1978)

Remark on "Algorithm 500: Minimization of Unconstrained Multivariate Functions [E4]". - David F. Shanno; Kang-Hoh Phua (ACM Trans. Math. Softw., 1980)

Numerical experience with sequential quadratic programming algorithms for equality constrained nonlinear programming. - David F. Shanno; Kang-Hoh Phua (ACM Trans. Math. Softw., 1989)