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Dualities in the functional representations of a production technology
Bobzin, Hagen, (1999)
Schattenpreise in der linearen Optimierung : zur ökonomischen Interpretation optimaler Dualvariablen bei der Bewertung von Variationen primaler Ressourcenkapazitäten
Nieuwenhuizen, Thorsten, (2003)
Organic farming in Scandinavia : productivity and market exit
Sauer, Johannes, (2009)
Consistent evidence on the efficiency of maize production in southwest Ethiopia
Sauer, Johannes, (2007)
"Efficiency flooding" black-box frontiers and policy implications
Sauer, Johannes, (2005)