@article{ELA_1999__5__a1,
     author = {Mehrmann, Volker and Xu, Hongguo},
     title = {Structured {Jordan} canonical forms for structured matrices that are {Hermitian,} skew {Hermitian} or unitary with respect to indefinite inner products},
     journal = {The electronic journal of linear algebra},
     pages = {67--103},
     publisher = {mathdoc},
     volume = {5},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_1999__5__a1/}
}