@article{DE_1974_10_10_a7,
     author = {V. A. Sadovnichii},
     title = {Traces with a weight, and the asymptotic behavior of the spectral function},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1808--1818},
     publisher = {mathdoc},
     volume = {10},
     number = {10},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_10_a7/}
}