Dixit, Avinash K., and Robert S. Pindyck. 1994a. Investment under Uncertainty. Princeton, N.J: Princeton University Press.
———. 1994b. Investment under Uncertainty. Princeton, N.J: Princeton University Press.
Koller, Tim, Tim Koller, Marc H. Goedhart, and David Wessels. 2015. Valuation: Measuring and Managing the Value of Companies. Sixth edition. Hoboken, New Jersey: Wiley.