@article{JEMS_2011_13_1_a3,
     author = {Enrique Zuazua},
     title = {Switching control},
     journal = {Journal of the European Mathematical Society},
     pages = {85--117},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2011},
     doi = {10.4171/jems/245},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/245/}
}