| Test examples for nonlinear programming codes W Hock, K Schittkowski Journal of optimization theory and applications 30, 127-129, 1980 | 1975 | 1980 |
| NLPQL: A FORTRAN subroutine solving constrained nonlinear programming problems K Schittkowski Annals of operations research 5, 485-500, 1986 | 1962 | 1986 |
| More test examples for nonlinear programming codes K Schittkowski Springer Science & Business Media, 2012 | 773 | 2012 |
| Test examples for nonlinear programming codes W Hock, K Schittkowski Springer, 1987 | 475 | 1987 |
| The nonlinear programming method of Wilson, Han, and Powell with an augmented Lagrangian type line search function: Part 1: Convergence analysis K Schittkowski Numerische Mathematik 38, 83-114, 1982 | 443 | 1982 |
| On the convergence of a sequential quadratic programming method with an augmented Lagrangian line search function K Schittkowski Mathematische Operationsforschung und Statistik. Series Optimization 14 (2 …, 1983 | 399 | 1983 |
| Nonlinear programming codes: information, tests, performance K Schittkowski Springer Science & Business Media, 2012 | 394 | 2012 |
| Numerical data fitting in dynamical systems: a practical introduction with applications and software K Schittkowski Springer Science & Business Media, 2002 | 335 | 2002 |
| A comparative performance evaluation of 27 nonlinear programming codes W Hock Computing 30, 335-358, 1983 | 247 | 1983 |
| NLPQLP: A fortran implementation of a sequential quadratic programming algorithm with distributed and non-monotone line search–user’s guide K Schittkowski Report, Department of Computer Science, University of Bayreuth, 2006 | 234 | 2006 |
| The cyclic Barzilai-–Borwein method for unconstrained optimization YH Dai, WW Hager, K Schittkowski, H Zhang IMA Journal of Numerical Analysis 26 (3), 604-627, 2006 | 218 | 2006 |
| Numerical comparison of nonlinear programming algorithms for structural optimization K Schittkowski, C Zillober, R Zotemantel Structural optimization 7, 1-19, 1994 | 200 | 1994 |
| A trust region SQP algorithm for mixed-integer nonlinear programming O Exler, K Schittkowski Optimization Letters 1, 269-280, 2007 | 153 | 2007 |
| EASY-FIT: a software system for data fitting in dynamical systems K Schittkowski Structural and Multidisciplinary Optimization 23, 153-169, 2002 | 123 | 2002 |
| Solving constrained nonlinear least squares problems by a general purpose SQP-method K Schittkowski Trends in Mathematical Optimization: 4th French-German Conference on …, 1988 | 106 | 1988 |
| NLPQLP: A new Fortran implementation of a sequential quadratic programming algorithm for parallel computing K Schittkowski Report, Department of Mathematics, University of Bayreuth, 2001 | 86 | 2001 |
| QL: A Fortran code for convex quadratic programming-User’s guide K Schittkowski Department of Mathematics, University of Bayreuth, Report, Version 2, 2005 | 79 | 2005 |
| Parameter estimation in systems of nonlinear equations K Schittkowski Numerische Mathematik 68 (1), 129-142, 1994 | 74 | 1994 |
| Computational mathematical programming K Schittkowski Springer Science & Business Media, 2013 | 64 | 2013 |
| A comparative study of SQP-type algorithms for nonlinear and nonconvex mixed-integer optimization O Exler, T Lehmann, K Schittkowski Mathematical Programming Computation 4, 383-412, 2012 | 63 | 2012 |
