@article{ELA_2002__9__a17,
     author = {Bolotnikov, Vladimir and Li, Chi-Kwong and Meade, Patrick R. and Mehl, Christian and Rodman, Leiba},
     title = {Shells of matrices in indefinite inner product spaces},
     journal = {The electronic journal of linear algebra},
     pages = {67--92},
     publisher = {mathdoc},
     volume = {9},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2002__9__a17/}
}