TY - JOUR AU - V. A. Ivanov TI - On the Average Number of Crossings of a Level by the Sample Functions of a Stochastic Process JO - Teoriâ veroâtnostej i ee primeneniâ PY - 1960 SP - 352 EP - 357 VL - 5 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_1960_5_3_a6/ LA - ru ID - TVP_1960_5_3_a6 ER -