“…But the coordination task has the same iterative nature which improves sequentially with gradient calculations for the dual variables [Bermussou and Titli, 1982;Guran et al, 1985;Nachane, 1985;Singh, 1975;Singh, 1987;Tiejun and Lu, 1987;Zhang et al, 1983]. But the coordination task has the same iterative nature which improves sequentially with gradient calculations for the dual variables [Bermussou and Titli, 1982;Guran et al, 1985;Nachane, 1985;Singh, 1975;Singh, 1987;Tiejun and Lu, 1987;Zhang et al, 1983].…”