@inbook {Amaral,
	title = {Market competition, public good, and state interference},
	booktitle = {Public-private dynamics in higher education. Expectations, developments and outcomes},
	year = {2007},
	pages = {89-110},
	publisher = {Transcript Verlag},
	organization = {Transcript Verlag},
	address = {Bielefeld},
	doi = {10.14361/9783839407523-004},
	url = {https://doi.org/10.14361\%2F9783839407523-004},
	author = {Alberto Amaral and A. Magalh{\~a}es},
	editor = {J. Enders and B. Jongbloed}
}
