@article{DE_1982_18_4_a10,
     author = {R. R. Ashurov},
     title = {The asymptotic behavior of spectral functions of some elliptic operators},
     journal = {Differencialʹnye uravneni\^a},
     pages = {621--625},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1982_18_4_a10/}
}