1. A. E. Bryson and Yu-Chi Ho, Applied Optimal Control, Hemisphere, Washington, DC (1975).
2. R.W. Brockett, “Lie algebras and Lie groups in control theory,” in: D. Q. Mayne and R. W. Brockett (eds.), Geometric Methods in System Theory, Proc. NATO Adv. Study Inst. (August 27–September 7, 1973, London), D. Reidel Publ. Comp., Dordrecht-Boston (1973), pp. 43–82.
3. A. M. Bloch, M. Reyhanoglu, and McClamroch, “Control and stabilization of nonholonomic dynamic systems, ” IEEE Trans. Automat. Control, 37, No.11, 1746–1757 (1992).
4. R. W. Brockett, “Pattern generation and the control of nonlinear systems,” IEEE Trans. Automat. Control, 48, No.10, 1699–1711 (2003).
5. C. Conudas de Wit and O. J. Sordalen, “Exponential stabilization of mobile robots with nonholonomic constraints,” IEEE Trans. Automat. Control, 37, No.11, 1791–1797 (1992).