@article{BauB04,
author = {U. Baur and P. Benner},
title = {Factorized solution of the {L}yapunov equation by using the
hierarchical matrix arithmetic},
journal = {Proc. Appl. Math. Mech.},
volume = {4},
number = {1},
pages = {658--659},
year = {2004}
}
