@article{GDZPPN001185071,
title = {Eigenvalues of Rayleigh quotient matrices.},
journal = {Numerische Mathematik},
volume = {59},
year = {1991},
pages = {603-614},
zbl = {0737.65037},
url = {http://dml.mathdoc.fr/item/GDZPPN001185071}
}
Sun, Ji-guang. Eigenvalues of Rayleigh quotient matrices.. Numerische Mathematik, Tome 59 (1991) pp. 603-614. http://gdmltest.u-ga.fr/item/GDZPPN001185071/