@article {1498, title = {Controllability of Timed Continuous Petri Nets with uncontrollable transitions}, journal = {International Journal of Control}, volume = {Posted online: 01 Oct 2013 }, year = {2013}, doi = {10.1080/00207179.2013.846480}, author = {C.R. Vazquez and A. Ramirez-Trevi{\~n}o and M. Silva} }