@article{EP_1998_4_a10,
     author = {V. Komornik and P. Loreti},
     title = {A contstructive aaproach for the observability of coupled linear systems},
     journal = {ESAIM. Proceedings},
     pages = {171--179},
     publisher = {mathdoc},
     volume = {4},
     year = {1998},
     doi = {10.1051/proc:1998027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/proc:1998027/}
}