Michael Karow, Daniel Kressner. On the structured distance to uncontrollability. Systems & Control Letters, 58(2):128-132, 2009. [doi]
@article{KarowK09,
title = {On the structured distance to uncontrollability},
author = {Michael Karow and Daniel Kressner},
year = {2009},
doi = {10.1016/j.sysconle.2008.09.005},
url = {http://dx.doi.org/10.1016/j.sysconle.2008.09.005},
researchr = {https://researchr.org/publication/KarowK09},
cites = {0},
citedby = {0},
journal = {Systems & Control Letters},
volume = {58},
number = {2},
pages = {128-132},
}