TY - JOUR AU - L. S. Ponomarenko TI - Estimation of distributions of normed quadratic forms of normally distributed random variables JO - Teoriâ veroâtnostej i ee primeneniâ PY - 1985 SP - 545 EP - 549 VL - 30 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_1985_30_3_a14/ LA - ru ID - TVP_1985_30_3_a14 ER -