1. Corporate venturing;Birley;Journal of Business Strategy,1984
2. A Group profile of the Fortune 500 Executives';Burck;Fortune,1976
3. Differentiating entrepreneurs from small business owners: A Conceptualization;Carland;Academy of Management Review,1984
4. Leadership and corporate performance in the service industries;Channon,1976
5. The Enterprising Man;Collins,1964