@article{CC_2009_38_2_a10,
     author = {Kaczorek, Tadeusz and Przyborowski, Przemys{\l}aw},
     title = {Reachability, controllability to zero and observability of the positive discrete-time {Lyapunov} systems},
     journal = {Control and Cybernetics},
     pages = {529--541},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {2009},
     zbl = {1301.93025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2009_38_2_a10/}
}