/B></A>
<PRE>
  [1] Kailath, T. and Sayed, A.
      Fast Reliable Algorithms for Matrices with Structure.
      SIAM Publications, Philadelphia, 1999.

  [2] Kressner, D. and Van Dooren, P.
      Factorizations and linear system solvers for matrices with
      Toeplitz structure.
      SLICOT Working Note 2000-2, 2000.

</PRE>
<A name="Numerical Aspects"><B><FONT SIZE="+1">Numerical Aspects</FONT></B></A>
<PRE>
  The implemented method is numerically stable.
                            3         2
  The alg