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European Journal of Operational Research > 1998 > 105 > 2 > 346-355
European Journal of Operational Research > 1997 > 102 > 1 > 1-20
Landscape and Urban Planning > 1997 > 37 > 3-4 > 147-161
European Journal of Operational Research > 1998 > 105 > 2 > 346-355
European Journal of Operational Research > 1997 > 102 > 1 > 1-20
Landscape and Urban Planning > 1997 > 37 > 3-4 > 147-161