TY - JOUR AU - L. B. Klebanov TI - When has a~quadratic statistics a~constant regression on the sample mean? JO - Teoriâ veroâtnostej i ee primeneniâ PY - 1979 SP - 646 EP - 648 VL - 24 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_1979_24_3_a23/ LA - ru ID - TVP_1979_24_3_a23 ER -