1. Cluster Analysis;Aldenderfer,1984
2. Attitudes and Behaviors of Informal Investors toward Early-Stage Investment, Technology-based Ventures, and Coinvestors;Aram;Journal of Business Venturing,1989
3. Mathematical Models in the Social Sciences;Arrow,1951
4. The Initial Financing of the New Research-based Enterprise in New England;Baty,1964
5. An Introduction to the Principles of Morals and Legislation;Bentham,1948