@article{DAN_1984_275_3_a9,
     author = {V. I. Feigin},
     title = {Spectral asymptotics for pseudodifferential operators in $R^n$},
     journal = {Doklady Akademii Nauk},
     pages = {557--561},
     publisher = {mathdoc},
     volume = {275},
     number = {3},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_275_3_a9/}
}