TY - JOUR AU - A. Fuchs AU - A. Joffe AU - J. L. Teugels TI - Expectation of the Ratio of the Sum of Squares to the Square of the Sum: Exact and Asymptotic Results JO - Teoriâ veroâtnostej i ee primeneniâ PY - 2001 SP - 297 EP - 310 VL - 46 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_2001_46_2_a4/ LA - ru ID - TVP_2001_46_2_a4 ER -