@article{10_4064_am41_2_9,
     author = {Ali Boutoulout and Layla Ezzahri and Hamid Bourray},
     title = {A new approach to the constrained controllability problem},
     journal = {Applicationes Mathematicae},
     pages = {221--228},
     publisher = {mathdoc},
     volume = {41},
     number = {2-3},
     year = {2014},
     doi = {10.4064/am41-2-9},
     zbl = {1304.49069},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am41-2-9/}
}