@article {Katsianis2009,
	title = {Business models for municipal metro networks: Theoretical and financial analysis},
	journal = {Optical Access Networks and Advanced Photonics: Technologies and Deployment Strategies},
	year = {2009},
	pages = {213-230},
	author = {Kyriakidou, V. and Chipouras, A and Katsianis, D and Sphicopoulos, T}
}
