@article{AULFM_1992_05_a6,
     author = {Krastanov, M. I. and Veliov, V. M.},
     title = {Local controllability of state constrained linear systems},
     journal = {Acta Universitatis Lodziensis. Folia Mathematica},
     publisher = {mathdoc},
     volume = {05},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AULFM_1992_05_a6/}
}