@article{publication-9880,
	author={Battiston, Stefano and Glattfelder, James B},
	doi={10.1103/PhysRevE.80.036104},
	issn={2470-0045},
	journal={Physical review. E},
	number=3,
	pages={036104-036104},
	publisher={American Physical Society},
	title={Backbone of complex networks of corporations: The flow of control},
	volume=80,
	year=2009,
}