@article{AM2_1993__46_2-3_137539,
     author = {Qiang Ye and P. Lancaster},
     title = {Definitezable hermitian matrix pencils.},
     journal = {Aequationes mathematicae},
     pages = {44--55},
     publisher = {mathdoc},
     volume = {46},
     number = {2-3},
     year = {1993},
     zbl = {0789.15009},
     url = {http://geodesic.mathdoc.fr/item/AM2_1993__46_2-3_137539/}
}