@article{ETNA_1997__5__a0,
     author = {Mehrmann, Volker and Xu, Hongguo},
     title = {An analysis of the pole placement problem. {II:} {The} multi-input case},
     journal = {Electronic transactions on numerical analysis},
     pages = {77--97},
     publisher = {mathdoc},
     volume = {5},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_1997__5__a0/}
}