A. Gilg and M. Günther, "Numerical circuit simulation", SURVEYS ON MATHEMATICS FOR INDUSTRY, vol. 8, pp. 165--169, 1999. SPRINGER-VERLAG.

M. Günther, S. Gänsheimer and A. Schilling, "Improved staging of prostate cancer using a new tumorscore", Aktuelle Urologie, vol. 30, no. 1, pp. 20--26, 1999. GEORG THIEME VERLAG KG RUDIGERSTR 14, D-70469 STUTTGART, GERMANY.

K. Chudej and M. Günther, "Global state space approach for the efficient numerical solution of state-constrained trajectory optimization problems", Journal of optimization theory and applications, vol. 103, pp. 75--93, 1999. Kluwer Academic Publishers-Plenum Publishers.

K. Chudej and M. G\"unther, "A global state space approach for the efficient numerical solution of state-constrained trajectory optimization problems", J. Optim. Theory Appl., vol. 103, no. 1, pp. 75--93, 1999.

M. Günther, S. Gänsheimer and A. Schilling, "Verbesserte prätherapeutische Abschätzung des pathologischen Tumorstadiums des Prostatakarzinoms anhand eines neuen Punktsystems", Aktuelle Urologie, vol. 30, no. 01, pp. 20--27, 1999. Georg Thieme Verlag Stuttgart{\textperiodcentered} New York.