@article{NnAaaa,
	author="M. Zorzi and F. Ticozzi and A. Ferrante",
	title="Minimum relative entropy for quantum estimation: Feasibility and general solution",
	journal="IEEE Trans. Inf. Theory",
	year="2014",
	month="January",
	pages="357-367",
	volume="60",
	number="1"
}