@article{FAA_1986_20_2_a5,
     author = {A. S. Andreev},
     title = {An estimate for the remainder in the asymptotic expansion of the spectrum of pseudodifferential operators of negative order},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {50--51},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1986_20_2_a5/}
}