%0 Journal Article %A U. Grenander %A M. Rosenblatt %T Some problems in estimating the spectrum of a time series %J Matematika %D 1958 %P 105-122 %V 2 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAT_1958_2_5_a3/ %G ru %F MAT_1958_2_5_a3