search query: @author Hallefjord, Å. / total: 2
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1.
A facet generation and relaxation technique applied to an assignment problem with side constraints.
European Journal of Operational Research
1991 : FEB 15, VOL. 50:3, p. 335-344
 1991 Aboudi, R.
Hallefjord, Å.
Jörnsten, K.
2.
A long range forestry planning problem with multiple objectives. (!Swedish forest service) (!Entropy)
European Journal of Operational Research
1986 : JUL, VOL. 26:1, p. 123-133
 1986 Hallefjord, Å.
Jörnsten, K.
Eriksson, O.
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