@incollection{
year={2015},
isbn={978-3-319-17688-8},
booktitle={Numerical Analysis and Optimization},
volume={134},
series={Springer Proceedings in Mathematics & Statistics},
editor={Al-Baali, Mehiddin and Grandinetti, Lucio and Purnama, Anton},
doi={10.1007/978-3-319-17689-5_7},
title={An ℓ
                        1-Penalty Scheme for the Optimal Control of Elliptic Variational Inequalities},
url={http://dx.doi.org/10.1007/978-3-319-17689-5_7},
publisher={Springer International Publishing},
keywords={Optimal Control of Variational Inequalities; ℓ 1-Penalty Methods in Function Space; Point Tracking; Stationarity Conditions for MPECs in Function Space},
author={Hintermüller, M. and Löbhard, C. and Tber, M.H.},
pages={151-190},
language={English}
}