@article {Katsianis2010,
	title = {Techno-economic evaluation of FTTC/VDSL and FTTH roll-out scenarios: Discounted cash flows and real option valuation},
	journal = {Journal of Optical Communications and Networking},
	volume = {2},
	number = {9},
	year = {2010},
	pages = {760-772},
	author = {Rokkas, T and Katsianis, D and Varoutas, D}
}
