@article{EP_2000_8_a6,
     author = {G\"unter Leugering and Enrique Zuazua},
     title = {On exact controllability of generic trees},
     journal = {ESAIM. Proceedings},
     pages = {95--105},
     publisher = {mathdoc},
     volume = {8},
     year = {2000},
     doi = {10.1051/proc:2000007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/proc:2000007/}
}