@inproceedings{publication-6353,
	author={Trinkner, Urs and Dietl, Helmut Max},
	booktitle={19th Conference on Postal and Delivery Economics},
	issn={1664-333X},
	month={JUN},
	number=27,
	publisher={Working papers / Swiss Economics},
	title={Defending mail markets against new entrants: An application of the defender model to postal markets},
	year=2011,
}