@inbook{publication-18400,
	address={Berlin},
	author={Hoffmann, Mathias},
	booktitle={Macroeconomic policies in the world economy},
	editor={Siebert, Horst},
	isbn={978-3-540-21917-0},
	pages={40-52},
	title={Comment on Michael D. Bordo and Thomas F. Helbling "Have National Business Cycles become more synchronized?"},
	year=2004,
}