@article{01924320,
title = {Properties of a covariance matrix with an application to },
journal = {ELA. The Electronic Journal of Linear Algebra [electronic only]},
volume = {10},
year = {2003},
pages = {65-76},
zbl = {1014.62090},
language = {en},
url = {http://dml.mathdoc.fr/item/01924320}
}
Zhu, Zewen; Coster, Daniel C.; Beasley, Leroy B. Properties of a covariance matrix with an application to . ELA. The Electronic Journal of Linear Algebra [electronic only], Tome 10 (2003) pp. 65-76. http://gdmltest.u-ga.fr/item/01924320/