@article {charalampopoulos2011option,
	title = {The option to expand to a next generation access network infrastructure and the role of regulation in a discrete time setting: A real options approach},
	journal = {Telecommunications Policy},
	volume = {35},
	number = {9},
	year = {2011},
	pages = {895{\textendash}906},
	publisher = {Pergamon},
	author = {Charalampopoulos, George and Katsianis, Dimitris and Varoutas, Dimitris}
}
