@ARTICLE\{IMM2000-0456, author = "P. C. Hansen and P. Y. Yalamov", title = "Stabilization by Perturbation of a 4n\^2 Toeplitz Solver", year = "2000", pages = "849-867", journal = "{SIAM} J. Matrix Analysis and Applications", volume = "", editor = "", number = "", publisher = "", url = "http://www2.compute.dtu.dk/pubdb/pubs/456-full.html" }