A New Relaxation Scheme for Mathematical Programs with Equilibrium Constraints. - Sonja Steffensen; Michael Ulbrich (SIAM J. Optim., 2010)

Numerical Methods for the Optimal Control of Scalar Conservation Laws. - Sonja Steffensen; Michael Herty; Lorenzo Pareschi (System Modelling and Optimization, 2011)

On the relaxation approximation of boundary control of the isothermal Euler equations. - Markus Dick; Martin Gugat; Michael Herty; Sonja Steffensen (Int. J. Control, 2012)

Characterization of strong stability for C-stationary points in MPCC. - Hubertus Th. Jongen; Vladimir Shikhman; Sonja Steffensen (Math. Program., 2012)

Implicit-Explicit Runge-Kutta Schemes for Numerical Discretization of Optimal Control Problems. - Michael Herty; Lorenzo Pareschi; Sonja Steffensen (SIAM J. Numer. Anal., 2013)

Global Solution of Bilevel Programming Problems. - Sonja Steffensen (OR, 2014)

Relaxation approach for equilibrium problems with equilibrium constraints. - Sonja Steffensen; Micha Bittner (Comput. Oper. Res., 2014)

Mean-field control and Riccati equations. - Michael Herty; Lorenzo Pareschi; Sonja Steffensen (Networks Heterog. Media, 2015)

A mechanism to enhance multi-participant's prevention efforts under pandemic. - Huan Sun; Haiyan Wang 020; Sonja Steffensen (Comput. Ind. Eng., 2022)

Multiscale control of Stackelberg games. - Michael Herty; Sonja Steffensen; Anna Thünen (Math. Comput. Simul., 2022)

Solving quadratic multi-leader-follower games by smoothing the follower's best response. - Michael Herty; Sonja Steffensen; Anna Thünen (Optim. Methods Softw., 2022)