@article{publication-10136,
	author={Battiston, Stefano and Caldarelli, Guido and Georg, Co-Pierre and May, Robert and Stiglitz, Joseph},
	doi={10.1038/nphys2575},
	issn={1745-2473},
	journal={Nature Physics},
	number=3,
	pages={123-125},
	publisher={Nature Publishing Group},
	title={Complex derivatives},
	volume=9,
	year=2013,
}