1. Foundations of technometrics;Sahal;Technol. Forecast. Soc. Change,1985
2. Theorie de Wirtschaftlichen Entewicklung (The Theory of Economic Development: An Inquiry Into Profits, Capital, Credit, Interest and the Business cycle);Schumpeter,1911
3. Business Cycles: a Theoretical, Historical and Statistical Analysis of the Capitalist Process;Schumpeter,1939
4. Capitalism, Socialism and Democracy;Schumpeter,1942
5. Information Rules;Shapiro,1999