1. Testing for the existence of a consistent aggregate index of labour inputs;Berndt;American Economic Review,1974
2. Technology, prices and derived demand foe energy;Berndt;Review of Economics and Statistics,1975
3. Duality theory and the pitfalls in the specification of technologies;Burgess;Journal of Econometrics,1975
4. Conjugate duality and the transcendental logarithmic production function;Christensen;Econometrica,1971
5. Cost of living indexes and price indexes for U.S. meat and produce, 1947–1971;Christensen,1975