@article {rokkas2010techno,
	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{\textendash}772},
	publisher = {Optical Society of America},
	author = {Rokkas, Theodoros and Katsianis, Dimitris and Varoutas, Dimitris}
}
