%0 Journal Article %A M. A. Lifshits %A M. Peligrad %T On the spectral density of stationary processes and random fields %J Zapiski Nauchnykh Seminarov POMI %D 2015 %P 274-285 %V 441 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2015_441_a16/ %G en %F ZNSL_2015_441_a16