@article{publication-1972,
	author={Buehler, S and Haucap, J},
	doi={10.1023/B:JICT.0000047299.13443.5a},
	issn={1566-1679},
	journal={Journal of Industry, Competition and Trade},
	number=3,
	pages={223-238},
	publisher={Springer},
	title={Mobile number portability},
	volume=4,
	year=2004,
}