TY - JOUR AU - V. F. Gaposhkin TI - On the integrability of a maximal square function in ergodic theory JO - Teoriâ veroâtnostej i ee primeneniâ PY - 1999 SP - 432 EP - 440 VL - 44 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_1999_44_2_a10/ LA - ru ID - TVP_1999_44_2_a10 ER -