@article{colaneri2002,
	author="P. Colaneri and A. Ferrante",
	title="A J-spectral factorization approach for H_infinity estimation problems in discrete-time",
	journal="IEEE Transactions on Automatic Control",
	year="2002",
	pages="2108-2113",
	volume="AC-47(12)",
	issn="0018-9286"
}