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When rural landscapes change functionality : examples from contrasting case studies in Portugal and Denmark
Correia, Teresa P., (2009)
Multi-level planning : case studies in Mexico
Goreux, Louis M., (1973)
Planning of industrial complexes by means of geometric programming
Nijkamp, Peter, (1972)
A development model for agricultural sector of Portugal
Egbert, Alvin Charles, (1975)
A development model for the agricultural sector of Portugal
An aggregate model of agriculture : empirical estimates and some policy implications
Egbert, Alvin C., (1969)