1. Agnew, B., 2000. When pharma merges, R&D is the dowry. Science, 17 March, 1952–1953.
2. Capturing the option value of R&D;Angelis;Research Technology Management,2000
3. Comprehensive Project Management: Integrating Optimization Models, Management Principles, and Computers, pp. 1–548;Badiru,1995
4. The new competitive landscape;Bettis;Strategic Management Journal,1995
5. Black, F., Scholes, M., 1988. The pricing of options and corporate liabilities. Journal of Political Economy May–June, 15–22.