@article{Kisielewicz:2002,
  author  = "M. Kisielewicz",
  title   = "Controllability theorem for nonlinear dynamical systems",
  journal = "Discussiones Mathematicae : Differential Inclusions : Control and Optimization",
  volume  = "Vol. 22",
  number  = "no 2",
  pages   = "225--232",
  year    = "2002",
}