@article {varoutas2009techno,
	title = {Techno-economic modelling of telecommunications networks and services},
	journal = {info},
	volume = {11},
	number = {3},
	year = {2009},
	publisher = {Emerald Group Publishing Limited},
	author = {Varoutas, Dimitris and Hammainen, Heikki and Welling, Ilari}
}
