@misc{indiciae09fba5c44c9c,
  title = {Maximal Controllability for Boundary Control Problems},
  author = {Engel, Klaus-Jochen and Kloess, Bernd and Nagel, Rainer and Sikolya, Eszter},
  year = {2010},
  doi = {10.1007/s00245-010-9101-1},
  url = {https://www.osti.gov/biblio/21480257},
  note = {Source identifier: 21480257}
}