@article{TVP_1978_23_3_a22,
     author = {L. S. Ponomarenko},
     title = {An inequality for distributions of quadratic forms in normal random variables},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {680--684},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1978_23_3_a22/}
}