@article{f.2010, author="F. Ramponi and A. Ferrante and M. Pavon", title="On the well-posedness of multivariate spectrum approximation and convergence of high-resolution spectral estimators", journal="Systems & Control Letters", year="2010", pages="167-172", volume="59", issn="0167-6911", note="doi = 10.1016/j.sysconle.2010.01.001" }