Vol. 11 (2000), p. 93APeter Benner, Ralph Byers, Heike Fassbender, Volker Mehrmann, and David Watkins: Addendum to Cholesky-like factorizations of skew-symmetric matrices
Vol. 13 (2002), pp. 106-118Volker Mehrmann and David Watkins: Polynomial eigenvalue problems with Hamiltonian structure