Systems & Control Letters
Systems & Control Letters > 1995 > 25 > 5 > 387-395
Systems & Control Letters > 1995 > 26 > 2 > 129-132
Systems & Control Letters > 1997 > 32 > 5 > 335-344
Systems & Control Letters > 1995 > 25 > 5 > 387-395
Systems & Control Letters > 1995 > 26 > 2 > 129-132
Systems & Control Letters > 1997 > 32 > 5 > 335-344