@article{COCV_2020__26_1_A64_0,
     author = {Ali, Ahmad Ahmad and Deckelnick, Klaus and Hinze, Michael},
     title = {Global minima for optimal control of the obstacle problem},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     year = {2020},
     publisher = {EDP Sciences},
     volume = {26},
     doi = {10.1051/cocv/2019039},
     mrnumber = {4150227},
     zbl = {1448.49004},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/cocv/2019039/}
}