1. Better Prospects for Our Ailing Productivity;Bowen;Fortune,1979
2. Stalemate in Technology;Mensch,1979
3. National Patterns of R&D Resources—Funds and Manpower in the United States 1953–76;U.S. National Science Foundation,1976
4. The Long Waves in Economic Life;Kondratieff;Rev. Econ. Stat.,1935