@article{FORUM_1995__7_1_186439,
     author = {Kevin A. Grasse},
     title = {Reachability of {Interior} {States} by {Piecewise} {Constant} {Controls.}},
     journal = {Forum mathematicum},
     pages = {607--628},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {1995},
     zbl = {0830.93004},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1995__7_1_186439/}
}