%0 Journal Article %A V. P. Nosko %T On the definition of the number of excursions above fixed level by a~random field %J Teoriâ veroâtnostej i ee primeneniâ %D 1979 %P 592-596 %V 24 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1979_24_3_a13/ %G ru %F TVP_1979_24_3_a13