@article{KYB_2003_39_2_a10,
     author = {Benvenuti, Luca and Farina, Lorenzo},
     title = {Minimal positive realizations: a survey of recent results and open problems},
     journal = {Kybernetika},
     pages = {217--228},
     year = {2003},
     volume = {39},
     number = {2},
     mrnumber = {1996559},
     zbl = {1249.93036},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_2003_39_2_a10/}
}