@inbook {IOPORT.05070000,
    author       = {Willems, Jan C. and Rapisarda, Paola},
    title        = {Balanced state representations from higher-order models.},
    year         = {2005},
    booktitle    = {EQUADIFF 2003. Proceedings of the international conference on differential equations, Hasselt, Belgium, July 22--26, 2003},
    isbn         = {981-256-169-2},
    pages        = {587-592},
    publisher    = {Hackensack, NJ: World Scientific},
    abstract     = {Summary: We derive algorithms that compute a balanced state representation from the differential equation describing a finite-dimensional linear system.},
    identifier   = {05070000},
}