1. Plenty of Demand for Broadband, According to Harris Interactive Consumer TechPoll, Press Release, Harris Interactive, 〈http://www.harrisinteractive.com〉, November 28, 2000.
2. P. Ferreira, B. Cossa, F. Naud, A cost model for optical backbones, submitted to DHPP232/ESD127/STP308, Telecommunications Modeling and Policy Analysis, Professors Lee McKnight and Jean Camp, Fletcher School-Tufts/MIT/Harvard Universities, Spring 2000.
3. W. Lehr, L. McKnight, Next generation bandwidth markets, Communications and Strategies, 4th Quarter, October 1998.
4. Investment Under Uncertainty;Dixit,1994
5. Telecommunications, the Internet, and the cost of capital;Hubbard,2000