Control and Cybernetics
Control and Cybernetics > 2000 > Vol. 29, no 1 > 167-178
Control and Cybernetics > 2000 > Vol. 29, no 2 > 555-565
Control and Cybernetics > 2000 > Vol. 29, no 1 > 167-178
Control and Cybernetics > 2000 > Vol. 29, no 2 > 555-565