Felgenhauer U.:A Newton-type method and optimality test for problems with bang-singular-bang optimal control.  Pure Appl. Funct. Anal., vol. 1(2), 2016, 197-215 .

Felgenhauer U.: Discretization of semilinear bang-singular-bang control problems.Computational Optimization and Applications, doi 10.1007/s10589-015-9800-2 (electronically), 2015; print version: vol. 64(1), 2016, 295-326.

 Felgenhauer U.: Note on local quadratic growth estimates in bang-bang optimal control problems.Optimization, vol . 64(3), 2015, 521 - 537; ISSN 1029-4945.

Felgenhauer U.: Stability analysis of variational inequalities for bang-singular-bang controls. Control and Cybernetics, vol. 42(3), 2013, 557 - 592.

Felgenhauer U.: Structural stability investigation of bang-singular-bang optimal controls.JOTA 152(3), 2012, 605 - 631.

Felgenhauer U.: Directional sensitivity differentials for parametric bang-bang control problems. in: Large-Scale Scientific Computing (Sozopol 2009), eds. I. Lirkov et al., Lecture Notes Comp. Sci. vol. 5910, Springer 2010, 264 - 271.

Felgenhauer U., Poggiolini, L., Stefani, G.: Optimality and stability result for bang-bang optimal controls with simple and double switch behaviour. in: "50 Years of Optimal Control", eds. A. Ioffe, K. Malanowski, F. Tröltzsch, Control and Cybernetics, vol. 38(4B), 2009, 1305 - 1325.

Felgenhauer U.: The shooting approach in analyzing bang-bang extremals with simultaneous control switches. Control and Cybernetics, vol. 37(2), 2008, 307 - 327.

Felgenhauer U.: Lipschitz stability of broken extremals in bang-bang control problems. in: Large-Scale Scientific Computing (Sozopol 2007), eds. I. Lirkov et al., Lecture Notes Comp. Sci. vol. 4818, Springer 2008, 317 - 325.

Felgenhauer U.: Optimality properties of controls with bang-bang components in problems with semilinear state equation. Control and Cybernetics, vol. 34(3), 2005, 763 - 785.

Felgenhauer U.: Optimality and sensitivity properties of bang-bang controls for linear systems. in: "Information Processing: Recent Mathematical Advances in Optimization and Control", (21st IFIP TC7 Conference Sophia Antipolis 2003), eds. J. Cagnol, J.-P. Zolesio, Presses de l'Ecole des Mines de Paris, 2004, 87 - 99.

Felgenhauer U.: Optimality and sensitivity for semilinear bang-bang type optimal control problems. Internat. J. Appl. Math. Comput. Sci., vol. 14(4), 2004, 447 - 454.

Felgenhauer U.: On stability of bang-bang type controls, SIAM J. Control Optim., vol.41(6), 2003, 1843 - 1867.