1. Determinants of the direction of technical change;Brozen;Am. econ. Rev.,1953
2. Financial provision for research and development in industry;Coales;Jl ind Econ.,1957
3. Applied Productivity Analysis for Industry;Eilon,1982
4. Does the market direct the relative factor-saving effects of technological progress;Fellner,1962
5. Foundations of Productivity Analysis;Gold,1955