@ARTICLE{TD00,
  author = {Tsiotras, P. and Doumtchenko, V.},
  title = {Control of Spacecraft Subject to Actuator Failures: State-of-the-Art and Open Problems},
  journal = {Journal of the Astronautical Sciences},
  year = {2000},
  volume = {48},
  pages = {337--358},
  number = {2 and 3}
}