Control and Cybernetics
Control and Cybernetics > 1998 > Vol. 27, no 2 > 177-198
Control and Cybernetics > 2000 > Vol. 29, no 1 > 305-323
Control and Cybernetics > 2002 > Vol. 31, no 3 > 695-712
Control and Cybernetics > 2003 > Vol. 32, no 1 > 5-32