Staňková, K., Olsder, G.J., and Bliemer, M.C.J. Bi-level optimal toll design problem solved by the inverse Stackelberg games approach. Urban Transport and the Environment in the 21st Century (C. A. Brebbia, V. Dolezel, eds.), Witpress, Southampton, Boston, 2006, 9 pp. Published as “Optimal toll design problem solved by the inverse Stackelberg approach”, Urban transport 12(1), pp. 871-880, 2006.