@article{TVP_1985_30_3_a14,
     author = {L. S. Ponomarenko},
     title = {Estimation of distributions of normed quadratic forms of normally distributed random variables},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {545--549},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1985_30_3_a14/}
}