%0 Journal Article %A Mehl, Christian %A Mehrmann, Volker %A Xu, Hongguo %T Canonical forms for doubly structured matrices and pencils %J The electronic journal of linear algebra %D 2000 %P 112-151 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/ELA_2000__7__a4/ %G en %F ELA_2000__7__a4