@article {Katsianis2006,
	title = {On the economics of 3G Mobile Virtual Network Operators (MVNOs)},
	journal = {Wireless Personal Communications},
	volume = {36},
	number = {2},
	year = {2006},
	pages = {129-142},
	author = {Varoutas, D and Katsianis, D and Sphicopoulos, Th. and Stordahl, K. and Welling, I}
}
