A discrete maximum principle for solving optimal control problems. - Vincent Guibout; Anthony M. Bloch (CDC, 2004)

Globally Optimal Feedback Control Law of the Underactuated Heisenberg System by Generating Functions. - Chandeok Park; Daniel J. Scheeres; Vincent Guibout; Anthony M. Bloch (CDC, 2006)

Global Solution for the Optimal Feedback Control of the Underactuated Heisenberg System. - Chandeok Park; Daniel J. Scheeres; Vincent Guibout; Anthony M. Bloch (IEEE Trans. Autom. Control., 2008)