Extremization of functions with equality constraints. - Huibert Kwakernaak; R. C. W. Strijbos (Math. Program., 1972)

Population Planning - A Distributed Time Optimal Control Problem. - Geert Jan Olsder; R. C. W. Strijbos (Optimization Techniques, 1975)

Control design via polynomial toolbox for Matlab version 2.0. - Michael Sebek; Huibert Kwakernaak; Didier Henrion; R. C. W. Strijbos (ECC, 1999)