%0 Journal Article %A V. I. Piterbarg %T The existence of moments for the number of level crossings by a Gaussian stationary process %J Doklady Akademii Nauk %D 1968 %P 46-48 %V 182 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_182_1_a10/ %G ru %F DAN_1968_182_1_a10