@article{TVP_2009_54_3_a7,
     author = {V. G. Alekseev},
     title = {On nonparametric estimates of higher spectral densities},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {567--573},
     publisher = {mathdoc},
     volume = {54},
     number = {3},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_2009_54_3_a7/}
}