@article{KYB_1991__27_4_a6,
     author = {Commault, Christian and Descusse, Jacques and Dion, Jean-Michel and Torres, J. A.},
     title = {Block decoupling invariants: {Geometric} and transfer matrix characterizations},
     journal = {Kybernetika},
     pages = {345--361},
     publisher = {mathdoc},
     volume = {27},
     number = {4},
     year = {1991},
     mrnumber = {1127910},
     zbl = {0768.93051},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1991__27_4_a6/}
}