1. R. Brockett, System Theory on Group Manifolds and Coset Spaces, SIAM J. Control (1972) pp. 265–284.
2. Lecture Notes in Computer Science;R. Brockett,1974
3. H. Hermes, On Local and Global Controllability, SIAM J. Control (1974) pp. 252–261.
4. V. Jurdjevic & H. Sussmann, Controllability of Nonlinear Systems, J. Diff. Eqs. (1972) pp. 95–116.
5. V. Jurdjevic & H. Sussmann, Control Systems on Lie Groups, J. Diff. Eqs. (1972) pp. 313–329.