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Resource allocation on an East Anglian dairy farm
Barnard, C.S., (1959)
Linear planlegging (linear programming) anvendt på landbruksøkonomiske problemer
Tandberg, Olav Vebjørn, (1958)
Die lineare Programmierung in der landwirtschaftlichen Betriebswirtschaft
Reisch, Erwin, (1962)
Trade policies and prospects in Western Europe
Sorenson, Vernon L., (1966)
Contradictions in U.S. trade policy
Sorenson, Vernon L., (1973)
Implications of trends toward protectionism
Sorenson, Vernon L., (1978)