1. Innovation among the Major Computer Manufacturers;Debecker;Technological Forecasting and Social Change,1988
2. Innovation, Industry and Economy: A Top-Down Analysis;Marchetti,1983
3. Infrastructures for Movement;Marchetti;Technological Forecasting and Social Change,1987
4. A Simple Substitution Model of Technological Change;Fisher;Technological Forecasting and Social Change,1971
5. On the Voltera and Other Nonlinear Models of Interacting Populations;Narenda;Reviews of Modern Physics,1971