@article{NnAaaa,
	author="F.P. Carli and A. Ferrante and M. Pavon and G. Picci",
	title="An Efficient Algorithm for Maximum Entropy Extension of Block–Circulant Covariance Matrices",
	journal="Linear Algebra and its Applications",
	year="2013",
	pages="2309 - 2329",
	volume="439",
	number="8"
}