@article{ELA_1998__4__a3,
     author = {Furtado, Susana and Silva, Fernando C.},
     title = {On the characteristic polynomial of matrices with prescribed columns and the stabilization and observability of linear systems},
     journal = {The electronic journal of linear algebra},
     pages = {19--31},
     publisher = {mathdoc},
     volume = {4},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_1998__4__a3/}
}