@article{ELA_2006__15__a22,
     author = {Mehl, Christian},
     title = {Essential decomposition of polynomially normal matrices in real indefinite inner product spaces},
     journal = {The electronic journal of linear algebra},
     pages = {84--106},
     publisher = {mathdoc},
     volume = {15},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2006__15__a22/}
}