@article{GDZPPN001164880, title = {Inclusion Theorems for Eigenvalues from Probability Inequalities.}, journal = {Numerische Mathematik}, volume = {6}, year = {1964}, pages = {98-102}, zbl = {0131.24903}, url = {http://dml.mathdoc.fr/item/GDZPPN001164880} }
MARSHALL, A.W.; OLKIN, I. Inclusion Theorems for Eigenvalues from Probability Inequalities.. Numerische Mathematik, Tome 6 (1964) pp. 98-102. http://gdmltest.u-ga.fr/item/GDZPPN001164880/