@article{MZM_1997_61_5_a17,
     author = {A. S. Pechentsov and A. Yu. Popov},
     title = {Asymptotic behavior of the spectral function of an operator family},
     journal = {Matemati\v{c}eskie zametki},
     pages = {793--796},
     publisher = {mathdoc},
     volume = {61},
     number = {5},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_61_5_a17/}
}