@article{10_21136_CMJ_1970_100955,
     author = {Ku\v{c}era, Jan},
     title = {On accessibility of bilinear systems},
     journal = {Czechoslovak Mathematical Journal},
     pages = {160--168},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1970},
     doi = {10.21136/CMJ.1970.100955},
     mrnumber = {0260459},
     zbl = {0205.16603},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1970.100955/}
}