Search results
European Journal of Operational Research > 1997 > 99 > 1 > 89-112
Mathematical and Computer Modelling > 1996 > 23 > 8-9 > 79-85
European Journal of Operational Research > 1996 > 88 > 3 > 413-427
European Journal of Operational Research > 1997 > 99 > 1 > 89-112
Mathematical and Computer Modelling > 1996 > 23 > 8-9 > 79-85
European Journal of Operational Research > 1996 > 88 > 3 > 413-427