@article{1177730100,
author = {Matern, Bertil},
title = {Independence of Non-Negative Quadratic Forms in Normally Correlated Variables},
journal = {Ann. Math. Statist.},
volume = {20},
number = {4},
year = {1949},
pages = { 119-120},
language = {en},
url = {http://dml.mathdoc.fr/item/1177730100}
}
Matern, Bertil. Independence of Non-Negative Quadratic Forms in Normally Correlated Variables. Ann. Math. Statist., Tome 20 (1949) no. 4, pp. 119-120. http://gdmltest.u-ga.fr/item/1177730100/