@article{1177729947, author = {Robbins, Herbert and Pitman, E. J. G.}, title = {Application of the Method of Mixtures to Quadratic Forms in Normal Variates}, journal = {Ann. Math. Statist.}, volume = {20}, number = {4}, year = {1949}, pages = { 552-560}, language = {en}, url = {http://dml.mathdoc.fr/item/1177729947} }
Robbins, Herbert; Pitman, E. J. G. Application of the Method of Mixtures to Quadratic Forms in Normal Variates. Ann. Math. Statist., Tome 20 (1949) no. 4, pp. 552-560. http://gdmltest.u-ga.fr/item/1177729947/